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ISP1521 - Digi-Key

1. VREF 5V0 PSWn N OCn N ISP1521 004aaa260 1 Raditoc S optional Fig 18 Adjusting analog overcurrent detection limit optional CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 43 of 53 ST 59 ERICSSON ISP1521 16 3 Self povvered hub configurations CD00222695 Hi Speed USB hub controller 4 85 V min E 5Vt3 POWER SUPPLY _ VREF 5VO GND TEST LOW TEST HIGH 3 3 V or ADOC 5 0V Fig 19 Self powered hub individual port power switching individual overcurrent 3 3 V LDO VOLTAGE REGULATOR downstream port connector ferrite bead 0 1 4 il T PSW1_N 2760 OC1_N PSW2_N OC2 N PSW3 N OC3 N PSW4 N OCA N PSW5 N OC5 N V il PSV Bus D min 120 uF D 1 GND SHIELD port 2 port 6 ferrite bead PSW6 N OC6 N T7 0 1 mi PSW7_N 47 I OC7 N detection m V i 4 75 V 5 min Pr 120 uF D 7 GND SHIELD 004aaa304 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 44 of 53 ST 59 ERICSSON ISP1521 CD00222695 Hi Speed USB hub controller 4 95V mi Rivas LTB min POWER SUPPLY ell kick up 3 3 V LDO VOLTAGE REGULATOR VREF 5VO i low ohmic 1 sens
2. to Vi Table 39 Static characteristics USB interface block to DP7 and DMO to DM7 Voc 3 0 V to 3 6 V Tamb 40 to 70 TC unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Input levels for high speed Vusso high speed squelch detection threshold squelch detected 100 mV voltage differential signal amplitude no squelch detected 150 mV VHseM high speed data signaling common mode 50 500 mV voltage range Output levels for high speed Vusol high speed idle level 10 10 mV VHsoH high speed data signaling HIGH level 360 440 mV voltage high speed data signaling LOW level 10 10 mV voltage VcumpJ Chirp J level differential voltage I 700 1100 mV VeHiRPK Chirp K level differential voltage El 900 500 mV Input levels for full speed and low speed LOW level input voltage 0 8 V Vin HIGH level input voltage driven 2 0 V ViHz HIGH level input voltage floating 2 7 3 6 V Vpi differential input sensitivity IDP DM 0 2 V Vom differential common mode range 0 8 2 5 V Output levels for full speed and low speed VoL LOW level output voltage 0 0 3 V Vou HIGH level output voltage 2 8 3 6 V Vers output signal crossover voltage El 1 3 2 0 V Leakage current liz off state leakage current 1 1 HA Capacitance Cin nput capacitance pin to GND 20 pF CD00222695 ST ERICSSON 2010 All rights reserved Product da
3. 2 If this string descriptor is not supported this bDescriptorType field must be used programmed with any value for example 03h 3 String descriptor index iManufacturer starts from address OEh for one language ID support and 10h for two languages ID support CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 22 of 53 ST 59 ERICSSON ISP1521 Hi Speed USB hub controller 9 Hub controller description CD00222695 9 1 9 2 Each USB device is composed of several independent logic endpoints An endpoint acts as a terminus of communication flow between the host and the device At design time each endpoint is assigned a unique number endpoint identifier see Table 13 The combination of the device address given by the host during enumeration the endpoint number and the transfer direction allows each endpoint to be uniquely referenced The ISP1521 has two endpoints endpoint 0 control and endpoint 1 interrupt Table 13 Hub endpoints Function Endpoint Transfer type Direction Maximum packet identifier size bytes Hub ports 0 to 7 0 control OUT 64 IN 64 1 interrupt IN 1 1 IN input for the USB host OUT output from the USB host Endpoint 0 According to the USB specification all devices must implement a default control endpoint This endpoint is used by the host to configure the USB device It provides access to the device co
4. downstream port crossover point extended upstream end of cable mgr778 B upstream EOP delay CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 41 of 53 Rl ISP1521 Hi Speed USB hub controller Table 46 Dynamic characteristics 12 pins SDA and SCL Vcc and Tamp within recommended operating range Vpp 5 V Vss Venn Vit and between Vss and Vpp Symbol Parameter Conditions Min Typ Max Unit Clock frequency fscL SCL clock frequency faa 12 MHz El 0 93 75 100 kHz General timing LOW period of the SCL clock 4 7 us sCL H HIGH period of the SCL clock 4 0 HS r rise time SDA and SCL signals El 1000 ns r Tall time SDA and SCL signals 300 ns Ch capacitive load for each bus line 400 pF SDA timing bus free time between a STOP and 4 7 us START condition tsu sTA setup time for the START condition BI 4 7 us tHD STA hold time for the START condition El 4 0 US tsu DAT data setup time 250 ns HD DAT data hold time 0 HS tsu sTo STOP condition setup time 4 0 us Additional I7C bus timing VD DAT data valid time Bi 0 4 us 1 sc Yea x XTAL 2 Rise time is determined by Cp and pull up resistor value R typical 4 7 KQ 3 Set up time for repeated START condition 4 Hold time for repeated START condition 5 SCL LOW to d
5. continued Vcc 3 0 V to 3 6 V Tamp 40 C to 70 test circuit Figure 22 unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Hub timing downstream ports configured as full speed I2 tFHDD hub differential data delay without see Figure 14 C 0 pF 44 ns cable tesop data bit width distortion after SOP see Figure 14 5 5 ns FEOPD hub EOP delay relative to tupp see Figure 15 0 15 ns FHESK hub EOP output vvidth skevv see Figure 15 15 15 ns 1 Excluding the first transition from the idle state 2 Characterized only not tested Limits guaranteed by design Table 45 Dynamic characteristics low speed source electrical characteristics Vcc 3 0 V to 3 6 V Tamp 40 to 70 TC test circuit Figure 22 unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Driver characteristics tin rise time 75 300 ns tir fall time 75 300 ns LRFM rise and fall time matching El 80 125 Vers output signal crossover voltage 1121 1 3 2 0 V Hub timing downstream ports configured as full speed ti HDD hub differential data delay see Figure 14 300 ns ti sop data bit width distortion after SOP see Figure 14 El 60 60 ns LEOPD hub EOP delay relative to tupp see Figure 15 El 0 200 ns LHESK hub EOP output vvidth skevv see Figure 15 El 300 300 ns 1 Excluding the first transition from the idle state 2 Characterized only not tested Limits
6. hex 05 08 09 09 06 06 06 06 06 06 bytes 2 3 hex device addressi11 00 00 00 00 01 00 00 02 00 01 03 00 03 01 03 02 03 03 windex bytes 4 5 hex 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 wLength Data response bytes 6 7 hex 00 00 none 01 00 configuration value 00 00 none 00 00 none length configuration interface and endpoint descriptors length device descriptor length language ID descriptor length 2 manufacturer string length product string length serial number string ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 27 of 53 Blau ISP1521 Hi Speed USB hub controller Table 23 Standard USB requests continued Request bmRequestType bRequest wValue windex wLength Data response byte 0 byte 1 bytes 2 3 bytes4 5 bytes 6 7 bits 7 to 0 hex hex hex hex Feature Clear Device Feature 0000 0000 01 01 00 00 00 00 00 none Remote_Wakeup Clear Endpoint 1 0000 0010 01 00 00 81 00 00 00 none Feature Halt Stall Set Device Feature 0000 0000 03 01 00 00 00 00 00 none Remote_Wakeup Set Endpoint 1 0000 0010 03 00 00 81 00 00 00 none Feature Halt Stall Status Get Device Status 1000 0000 00 00 00 00 00 02 00 device status Get Interface Status 1000 0001 00 00 00 00 00 02 00 zero Get Endpoint 0 Status 1000
7. 06 two language ID support 0B bDescriptorType 0321 STRING UC wLANGID 0 09 LANGID code zero first language ID 00 04 English USA in this example OE wLANGID 1 09 LANGID code one second language ID OF S 08 English UK in this example ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 18 of 53 Rl ISP1521 Hi Speed USB hub controller Table 12 ROM or EEPROM detailed map continued Address Content Default Example Comment hex hex hex String descriptor Index 1 iManufacturer 3 10 bLength 2E string descriptor length manufacturer ID 11 bDescriptorType 0321 STRING 12 13 bString 53 00 S of ST Ericsson 1415 54 00 T 16 17 2D 00 18 19 45 00 E 1A 1B 72 00 r 1C 1D 69 00 i 1E 1F 63 00 20 21 73 00 S 22 23 73 00 S 24 25 6F 00 0 26 27 6E 00 n 28 29 FF FF 2A 2B FF FF 2C 2D FF FF 2E 2F FF FF 30 31 FF FF 32 33 FF FF 34 35 FF FF 36 37 FF FF 38 39 FF FF 3A 3B FF FF 3C 3D FF FF String descriptor Index 2 iProduct 3E bLength 10 string descriptor length product ID 3F bDescriptorType 03 2 STRING 40 41 bString 49 00 of ISP1521 42 43 53 00 S 44 45 50 00 P 46 47 31 00 1 48 49 35 00 5 4A 4B 32 00 2 4C 4D 31 00 1 String descriptor Index 3 iSerialNumber Remark If supported this string must be unique 4E bLength 3A string descriptor length serial number
8. 4F bDescriptorType 0321 STRING 50 51 bString 39 00 9 of 947337877678 wired support CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 19 of 53 ST 59 ERICSSON ISP1521 CD00222695 Hi Speed USB hub controller Example Comment ON DON N DN W WN Ff OTC oO c o t string descriptor length manufacturer ID STRING S of ST Ericsson 1 E Table 12 ROM or EEPROM detailed map continued Address Content Default hex hex hex 52 53 34 00 54 55 37 00 56 57 33 00 58 59 33 00 5A 5B 37 00 5C 5D 38 00 5E 5F 37 00 60 61 37 00 62 63 36 00 64 65 37 00 66 67 38 00 68 69 20 00 6A 6B 3D 00 6C 6D 20 00 6E 6F 77 00 70 71 69 00 72 73 72 00 74 75 65 00 7677 64 00 7879 20 00 7A 7B 73 00 7C 7D 75 00 TE TF 70 00 80 81 70 00 82 83 6F 00 84 85 72 00 86 87 74 00 String descriptor Index 1 iManufacturer second language 88 bLength 2b 89 bDescriptorType 0321 BA 8 bString 53 00 8C 8D 54 00 8E 8F 2D 00 90 91 45 00 92 93 72 00 94 95 69 00 96 97 63 00 98 99 73 00 9A 9B 73 00 9C 9D 6F 00 o o ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 20 of 53 Rl ISP1521 Hi Speed USB hub controller Table 12 ROM or EEPROM detailed map continued Address Content Default Example Comment hex hex hex 9E
9. PLL is integrated on chip This allows the use of low cost 12 MHz crystals The low crystal frequency also minimizes EMI No external components are required for the operation of the PLL I2C bus controller A simple serial I2C bus interface is provided to transfer vendor ID product ID and string descriptor from an external I2C bus EEPROM or microcontroller A master slave I2C bus protocol is implemented according to timing requirements as mentioned in I2C bus standard specifications The maximum data count during I2C bus transfers for the 15 1521 is 256 bytes Overcurrent detection circuit An overcurrent detection circuit is integrated on chip The main features of this circuit are self reporting automatic resetting low trip time and low cost This circuit offers an easy solution at no extra hardware cost on the board GoodLink Indication of a good USB connection is provided through the GoodLink technology An LED can be directly connected to pin HUBGL N through an external 330 resistor During enumeration the LED momentarily blinks on After successful configuration the LED blinks off for 100 ms upon each transaction This feature provides a user friendly indication of the status of the hub the connected downstream devices and the USB traffic It is a useful diagnostics tool to isolate faulty USB equipment and helps to reduce field support and hotline costs Power on reset The ISP1521 has an internal Power On Reset POR
10. circuit ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 10 of 53 d ST 59 ERICSSON ISP1521 CD00222695 Hi Speed USB hub controller The triggering voltage of the POR circuit is 2 03 V nominal A POR is automatically generated when Vcc goes below the trigger voltage for a duration longer than 1 us POR 0v La t 004aaa388 At t4 clock is running and available Fig 3 Power on reset timing POR EXTERNAL CLOCK VVVVVVVVV 004aaa365 Stable external clock is to be available at A Fig 4 External clock with respect to power on reset ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 11 of 53 ST 59 ERICSSON ISP1521 8 Configuration selections Hi Speed USB hub controller The ISP1521 is configured through I O pins and optionally through an external I2C bus in which case the hub can update its configuration descriptors as a master or as a slave Table 3 shows configuration parameters Table 3 Configuration parameters Mode and selection Option Number of downstream 2 ports facing ports 3 ports 4 ports 5 ports 6 ports 7 ports Power switching mode none ganged multiple ganged individual Overcurrent protection none mode globallZi multiple ganged individual Nonremovable ports any port can be nonremovable Port indicator suppor
11. gt iFST 3 3 V differential data lines OV Fig 13 Receiver SEO width tolerance ViH min mgr872 CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 40 of 53 dS ST ISP1521 99 ERICSSON Hi Speed USB hub controller 43 3 V 7 upstream crossover downstream crossover differential a point differential point data lines data M OV hub delay hub delay 4 downstream I upstream tHDD tHDD 43 3 V downstream crossover Upstream crossover differential a point K point data lines data N w mgr777 A downstream hub delay B upstream hub delay SOP distortion tsop tHDD next J HDD SOP Fig 14 Hub differential data delay and SOP distortion Full speed timing symbols have a subscript prefix F low speed timing a prefix L 3 3 V upstream crossover differential point data lines extended 0v 3 3 V downstream crossover differential point data lines extended N 0v A downstream EOP delay EOP delay eop max tEoP tEoP EOP delay relative to typp EOPD EOP HDD EOP skew HESK teop EOP Fig 15 Hub EOP delay and EOP skew Full speed timing symbols have a subscript prefix F low speed timing a prefix L crossover point extended
12. the internal switch to the 1 5 kO external resistor is opened and all pins DPn and DMn are 3 state it is recommended that you connect to any one of the 3 3 V Vcc pins through an RC circuit refer to the schematics in ISP1521 Hi Speed USB hub demo board user manual UM10011 ADOC 41 l analog or digital overcurrent detect selection input LOW selects digital mode and HIGH 3 3 V or 5 0 V selects analog mode XTAL1 42 1 crystal oscillator input 12 MHz XTAL2 43 O crystal oscillator output 12 MHz GND 44 ground supply DM2 45 Al O downstream facing port 2 D connection analog DP2 46 Al O downstream facing port 2 D connection analog GND 47 ground supply DM7 48 Al O downstream facing port 7 D connection analog DP7 49 Al O downstream facing port 7 D connection analog 50 supply voltage 1 3 3 V analog GND 51 ground supply Vcc4 52 supply voltage 4 3 3 V crystal and PLL GND 53 ground supply DM3 54 Al O downstream facing port 3 D connection analog l5l DP3 55 Al O downstream facing port 3 D connection analog Vcc2 56 supply voltage 2 3 3 V transceiver GND 57 ground supply ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 6 of 53 d ST 59 ERICSSON ISP1521 Table 2 Pin description Hi Speed USB hub controller continued Symboll11 DM4 DP4 NOOC GRN4_N AMB4_N GRN3_N AMB3_N GRN7_N A
13. 4 7 kO pull up 2 2 kO to 4 7 kO pull up External microcontroller driven LOW by the 2 2 kO to 4 7 kO pull up microcontroller during reset CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 17 of 53 ST 59 ERICSSON ISP1521 CD00222695 8 2 3 ROM or EEPROM map Hi Speed USB hub controller 80h FFh Fig 8 ROM or EEPROM map Device Descriptor 0Ah Language ID 10h String Descriptor first Language ID iManufacturer string iProduct string 7Fh iSerial Number string String Descriptor second Language ID iManufacturer string iProduct string iSerial Number string mld714 Remark A 128 byte EEPROM supports one language D only and a 256 byte EEPROM supports two language IDs 8 2 4 ROM or EEPROM detailed map Table 12 ROM or EEPROM detailed map Address Content Default Example Comment hex hex hex Signature descriptor 00 signature low 55 signature to signify valid data comment 01 signature high AA Device descriptor 02 idVendor low CC ST Ericsson vendor ID 03 idVendor high 04 04 idProduct low 21 ISP1521 product ID 05 idProduct high 15 06 bcdDevice low 00 device release silicon revision increments 07 bcdDevice high 02 this value 08 RSV iSN iP iM 00 if all the three strings are supported the value of this byte is 39h 09 reserved FF String descriptor Index 0 language ID 0A bLengthl
14. 9F 6E 00 n A1 FF FF A2 A3 FF FF A4 A5 FF FF A6 A7 FF FF A8 A9 FF FF AA AB FF FF AC AD FF FF AE AF FF FF BO B1 FF FF B2 B3 FF FF B4 B5 FF FF String descriptor Index 2 iProduct B6 bLength 100 string descriptors product ID B7 bDescriptorType 0321 STRING B8 B9 bString 49 00 of ISP1521 BA BB 53 00 S BC BD 50 00 P BE BF 31 00 1 CU C1 35 00 5 C2 C3 32 00 2 C4 C5 31 00 1 String descriptor Index 3 iSerialNumber C6 bLength 16111 string descriptors serial number C7 bDescriptorType 0322 STRING C8 C9 bString 36 00 6 of 6565943193 CA CB 35 00 5 CC CD 36 00 6 CE CF 35 00 5 DO D1 39 00 9 D2 D3 34 00 4 D4 D5 33 00 3 D6 D7 31 00 1 D8 D9 39 00 9 DA DB 33 00 3 DC DD FF FF DE DF FF FF EO E1 FF FF E2 E3 FF FF E4 E5 FF FF CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 21 of 53 BicssoN ISP1521 Hi Speed USB hub controller Table 12 ROM or EEPROM detailed map continued Address Content Default Example Comment hex hex hex E6 E7 FF FF E8 E9 FF FF EA EB FF FF EC ED FF FF EE EF FF FF FO F1 FF FF F2 F3 FF FF F4 F5 FF FF F6 F7 FF FF F8 F9 FF FF FA FB FF FF FC FD FF FF FE FF FF FF upper boundary of all string descriptors 1 If this string descriptor is not supported this bLength field must be programmed with value 02h
15. D connection analog B downstream facing port 5 D connection analog 3 supply voltage 1 3 3 V analog ground supply supply voltage 4 3 3 V crystal and PLL ground supply downstream facing port 6 D connection analog 2 downstream facing port 6 D connection analog supply voltage 2 3 3 V transceiver ground supply downstream facing port 1 D connection analog downstream facing port 1 D connection analog connect to GND connect to 5 0 V through a 10 kQ resistor overcurrent sense input for downstream facing port 1 analog digital output power switch control output open drain with an internal pull up resistor for downstream facing port 1 input function of the pin when used as an input is given in Table 5 overcurrent sense input for downstream facing port 6 analog digital output power switch control output open drain with an internal pull up resistor for downstream facing port 6 input function of the pin when used as an input is given in Table 5 overcurrent sense input for downstream facing port 5 analog digital output power switch control output open drain with an internal pull up resistor for downstream facing port 5 input function of the pin when used as an input is given in Table 5 ground supply supply voltage 3 3 3 V digital reference voltage 5 V 5 96 used to power internal pull up resistors of PSWn N pins and also for the analog overcurrent det
16. Phase locked loop clock multiplier 10 7 4 I C bus controller 10 7 5 Overcurrent detection circuit 10 7 6 GoodLirnk nre acra tare et 10 7 7 Povver on reset 10 8 Configuration selections 12 8 1 Configuration through I O pins 13 8 1 1 Number of downstream facing ports 13 8 1 2 Power switching eee 13 8 1 2 1 X Voltage drop requirements 13 8 1 3 Overcurrent protection mode 14 8 1 4 Nonremovable 2222222 15 8 1 5 Port indicator support 15 8 2 Device descriptors and string descriptors settings using I C buS 16 8 2 1 Background information on I7C bus 16 8 2 1 1 Different conditions on I7C bus 16 8 2 1 2 Data transfer 16 8 2 1 3 12 address 16 8 2 2 Architecture of configurable hub descriptors 17 8 2 3 ROM or EEPROM map 18 8 2 4 ROM or EEPROM detailed map 18 9 Hub controller description 23 9 1 Endpoint O csset ERRARE ERREUR 23 9 2 Endpoint 1 2221 dan Rayo b 23 10 Descriptors 24 11 Hub requests 27 11 1 Standard USB requests 27 11 2 Hub class requests 28 11 3 Detailed responses to hub requests 29 11 3 1 Get configuratio
17. are e ST Ericsson Serial Interface Engine SIE Routing logic Transaction Translator TT Mini Host Controller Hub repeater Hub controller Port controller Bit clock recovery ST Ericsson serial interface engine The ST Ericsson Serial Interface Engine SIE implements the full USB protocol layer It is completely hardwired for speed and needs no firmware intervention The functions of this block include synchronization pattern recognition parallel or serial conversion bit de stuffing CRC checking and generation Packet IDentifier PID verification and generation address recognition and handshake evaluation and generation Routing logic The routing logic directs signaling to appropriate modules mini Host Controller Original USB repeater and Hi Speed USB repeater according to the topology in which the hub is placed Transaction translator The Transaction Translator TT acts as a go between mechanism that links devices operating in Original USB mode and Hi Speed USB upstream mode For the IN direction data is concatenated in TT buffers till the proper length is reached before the host takes the transaction In the reverse direction OUT the mini host dispenses the data contained in TT buffers over a period that fits into the Original USB bandwidth This continues until all outgoing data is emptied TT buffers are used only on split transactions Mini Host Controller The internal mini host gener
18. internal ROM they can also be supplied by an external I2C bus EEPROM or a microcontroller The ISP1521 is suitable for self powered hub designs An analog overcurrent detection circuitry is built into the ISP1521 which can also accept digital overcurrent signals from external circuits for example Micrel MOSFET switch MIC2026 The circuitry can be configured to trip on a global or an individual overcurrent condition Each port comes with two status indicator LEDs Target applications of the ISP1521 are monitor hubs docking stations for notebooks internal USB hub for motherboards hub for extending Intel Easy PCs hub boxes and so on eoe ST 69 ERICSSON ST 59 ERICSSON ISP1521 2 Features Hi Speed USB hub controller 3 Applications Complies with Universal Serial Bus Specification Rev 2 0 Advanced Configuration and Power Interface ACPI OnNow and USB power management requirements Supports data transfer at high speed 480 Mbit s full speed 12 Mbit s and low speed 1 5 Mbit s Self powered capability Configurable number of ports Internal Power On Reset POR and low voltage reset circuit Port status indicators Integrates high performance USB interface device with hub handler ST Ericsson Serial Interface Engine SIE and transceivers Built in overcurrent detection circuit Individual or ganged power switching individual or global overcurrent protection and nonremovable port
19. support by I O pins configuration Simple I2C bus master or slave interface to read device descriptor parameters language ID manufacturer ID product ID serial number ID and string descriptors from a dedicated external EEPROM or to allow the microcontroller to set up hub descriptors Visual USB traffic monitoring GoodLink1 for the upstream facing port Uses 12 MHz crystal oscillator with on chip Phase Locked Loop PLL for low ElectroMagnetic Interference EMI Supports temperature range from 40 C to 70 C Available in LQFP80 package Monitor hubs Docking stations for notebooks Internal hub for USB motherboards Hub for extending Easy PCs Hub boxes 4 Ordering information Table 1 Ordering information Commercial Package description Packing Minimum sellable product code quantity ISP1521BEUM LQFP80 80 leads body 12 x 12 x 1 4 mm 13 inch tape and reel dry pack 1000 pieces 1 GoodLink is a trademark of ST Ericsson CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 2 of 53 y us ejep yonpolg 40 M 0102 1eniqeJ y 6Jot 9692220000 syybu IY 0L0Z 15 Vcc1 Voce ST ERICSSON PIE Vcca Vcc4 TRANSACTION TRANSLATOR MINI HOST CONTROLLER GND VREF 5VO upstream port 0 RPU RREF DMO DPO ANALOG TRANSCEIVER ORIGINAL USB HI SPEED USB HUB REPEAT
20. 0010 00 00 00 00 80 00B 02 00 endpoint 0 status Get Endpoint 1 Status 1000 0010 00 00 00 81 00 02 00 endpoint 1 status 1 Device address 0 to 127 2 Returned value in bytes 3 MSB specifies endpoint direction 0 OUT 1 IN The ISP1521 accepts either value 11 2 Hub class requests Table 24 shows hub class requests Table 24 Hub class requests Request bmRequestType bRequest wValue windex wLength Data byte 0 byte 1 bytes 2 3 bytes 4 5 bytes 6 7 bits 7 to 0 hex hex hex hex Descriptor Get Hub Descriptor 1010 0000 06 descriptortype 00 00 length descriptor and index Feature Clear Hub Feature 0010 0000 01 00 00 00 00 00 00 none C_LOCAL_POWER Clear Port Feature 0010 0011 01 featurel2 00 portl l 00 00 00 none Set Port Feature 0010 0011 03 feature 00 port 00 00 00 none Status Get Hub Status 1010 0000 00 00 00 00 00 04 00 hub status and change status Get Port Status 1010 0011 00 00 00 port 00 04 00 port status and change status TT ClearTTBuffer 0010 0011 08 Dev Addr 01 00 00 00 none EP nr ResetTT 0010 0000 09 00 00 01 00 00 00 none GetTTState 1010 0011 10 TT flags 01 00 El TT state CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 28 of 53 ST 59 ERICSSON ISP1521 Table 24 Hub class requests continued Hi Speed USB hub controller Request bmRequestType bRequest wValue windex wLength Data
21. 00222695 Hi Speed USB hub controller Table 26 Get hub configuration response Bit Function Value Description 0 configuration value 0 device is not configured 1 device is configured 1to7 reserved 0 Get device status This request returns 2 bytes of data see Table 27 Table 27 Get device status response Bit Function Value Description 0 self powered 1 self powered 1 remote wake up 0 disabled 1 enabled 2 to 15 reserved 0 Get interface status The request returns 2 bytes of data see Table 28 Table 28 Get interface status response Bit Function Value Description Oto 15 reserved 0 Get endpoint status The request returns 2 bytes of data see Table 29 Table 29 Get endpoint status response Bit Function Value Description 0 halt 0 endpoint is not halted 1 endpoint is halted 1to 15 reserved 0 Get hub status The request returns 4 bytes of data see Table 30 Table 30 Get hub status response Bit Function Value Description 0 local power source 0 local power supply good 1 local power supply lost inactive 1 overcurrent indicator 0 no overcurrent condition currently exists 1 a hub overcurrent condition exists 2to 15 reserved 0 16 local power status change 0 no change in the local power status 1 local power status has changed ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 30 of 53 ST 59 ERICSSON ISP152
22. 1 11 3 6 CD00222695 Hi Speed USB hub controller Table 30 Get hub status response continued Bit Function Value Description 17 overcurrent indicator change 0 no change in overcurrent 1 overcurrent status has changed 18 to 31 reserved 0 Get port status This request returns 4 bytes of data The first word contains port status bits wPortStatus and the next word contains port status change bits wPortChange The contents of wPortStatus is given in Table 31 and the contents of wPortChange is given in Table 32 Table 31 Get port status response wPortStatus Bit Function Value Description 0 current connect status 0 no device is present 1 a device is present on this port 1 port enabled or disabled 0 port is disabled 1 port is enabled 2 suspend 0 port is not suspended 1 port is suspended 3 overcurrent indicator 0 no overcurrent condition exists 1 an overcurrent condition exists 4 reset 0 reset signaling is not asserted 1 reset signaling is asserted 5107 reserved 0 8 port power 0 port is in the powered off state 1 port is not in the powered off state 9 low speed device attached 0 full speed or high speed device is attached 1 low speed device is attached 10 high speed device attached 0 full speed device is attached 1 high speed device is attached 11 port test mode 0 not in port test mode 1 in port test mode 12 port indicator control 0 displays default colors 1 displays software controlled color 13to15 reserv
23. 8 CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 50 of 53 ST 59 ERICSSON ISP1521 23 Figures Hi Speed USB hub controller Fig 1 Fig 2 Fig 3 Fig 4 Fig 5 Fig 6 Fig 7 Fig 8 Fig 9 Fig 10 Fig 11 Fig 12 Fig 13 Fig 14 Fig 15 Fig 16 Fig 17 Fig 18 Fig 19 Fig 20 Fig 21 Fig 22 Fig 23 CD00222695 Block diagram 3 Pin configuration 4 Power on reset timing 22 11 External clock with respect to power on reset 11 Typical voltage drop components in self powered mode using individual overcurrent detection 14 Typical voltage drop components in self powered mode using global overcurrent detection 14 Configurable hub descriptors 17 ROM or EEPROM map 18 Overcurrent trip response timing 37 Source differential data jitter 39 Source differential data to EOP transition skevv and EOP width 40 Receiver differential data jitter 40 Receiver SEO width tolerance 40 Hub differential data delay and SOP distortion 41 Hub EOP delay and EOP skew 41 I2C bus timing 42 Descriptors configuration selection application diagrami hic svi we oho ach SE RIS 43 Adjusting analog overcurrent detect
24. ER ORIGINAL USB HI SPEED USB ROUTING LOGIC 12 MHz XTAL1 XTAL2 BIT CLOCK RECOVERY ST ERICSSON SIE 5 ISP1521 PC BUS CONTROLLER HUB CONTROLLER PORT CONTROLLER ANALOG TRANSCEIVER ORIGINAL USB HI SPEED USB POWER SWITCH OVERCURRENT DETECTION LINK LEDS ANALOG TRANSCEIVER ORIGINAL USB HI SPEED USB POWER SWITCH OVERCURRENT DETECTION LINK LEDS I2C bus SDA SCL RESET N HUBGL N TEST ADOC NOOC 2 mld710 DM1 DP1 PSW1_N AMB1_N DM7 DP7 PSW7 N AMB7_N OC1N GRN1_N OC7 N GRN7 N 1 I Y v v downstream downstream downstream port 1 port 2 to port 6 port 7 Fig 1 Block diagram G uieJ6eip 420 8 19 043u02 qnu gsn peeds iH 1s s NOSS21M3 LCS L dS ST 59 ERICSSON ISP1521 6 Pinning information Hi Speed USB hub controller 6 1 Pinning zZz Z Z Z Z Z Z zZ O o o o o Eoi si xl Km o xl x 52 12 02 8882828222 004 04 604 6 6 04 064 064 0 TEST O 60 NOOC GND DP4 DMO DM4 DPO GND RPU Voce GND 6 DP3 RREF DM3 GND GND DM5 Vcc4 DP5 GND ISP1521BEUM Vect 1 GND DP7 Vcc4 DM7 GND GND DM6 DP2 DP6 DM2 Voce GND GND XTAL2 DM1 XTAL1 DP1 ADOC TINO TS Lo OLIN O00 O O cillcoliyxlltollolinliloollolio qil alisi e fad cu Jou al ele c l 9 co cd eol eol ed 16571 mld712 S L ZA Z Z 20 8 eoZ2Z2Z22Z22222 2
25. MB7_N GRN2_N AMB2_N VREF 5V0 Voc3 GND GRN1_N CD00222695 Pin 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 Type AVO AVO Vo Vo Vo Vo Vo Vo Vo Vo Description downstream facing port 4 D connection 100 221 downstream facing port 4 D connection analog 3 no overcurrent protection selection input connect this pin to HIGH 3 3 V to select no overcurrent protection if no overcurrent is selected all OC N pins must be connected to Vggr svo output green LED port indicator open drain for downstream facing port 4 input function of the pin when used as an input is given in Table 9 output amber LED port indicator open drain for downstream facing port 4 input function of the pin when used as an input is given in Table 8 output green LED port indicator open drain for downstream facing port 3 input function of the pin when used as an input is given in Table 9 output amber LED port indicator open drain for downstream facing port 3 input function of the pin when used as an input is given in Table 8 output green LED port indicator open drain for downstream facing port 7 input function of the pin when used as an input is given in Table 9 output amber LED port indicator open drain for downstream facing port 7 input function of the pin when used as an input is give
26. SP1521 Hi Speed USB hub controller 8 2 2 Architecture of configurable hub descriptors signature match MASTER SLAVE 12C BUS INTERFACE oA RAM 256 bytes DESCRIPTOR HUB CORE GENERATOR C INTERFACE ROM 256 bytes mld711 The I2C bus cannot be shared between the EEPROM and the external microcontroller Fig 7 Configurable hub descriptors Configurable hub descriptors can be masked in the internal ROM memory see Figure 7 These descriptors can also be supplied from an external EEPROM or a microcontroller The ISP1521 implements both the master and slave I2C bus controllers The information from the external EEPROM or the microcontroller is transferred into the internal RAM during the power on reset A signature word is used to identify correct descriptors If the signature matches the content of the RAM is chosen instead of the ROM When external microcontroller mode is selected and while the external microcontroller is writing to the internal RAM any request to configurable descriptors will be responded to with a Not AcKnowledge NAK There is no specified time out period for the NAK signal This data is then passed to the host during the enumeration process The three configuration methods are selected by connecting pins SCL and SDA in the manner given in Table 11 Table 11 Configuration method Configuration method SCL SDA Internal ROM ground ground External EEPROM 2 2 kO to
27. SP1521 hub controller supports the following standard USB descriptors Device Device qualifier Other speed configuration Configuration nterface Endpoint Hub The hub returns descriptors based on the mode of operation full speed or high speed Table 15 Device descriptor Offset Field name Value hex Comments bytes Full speed High speed 0 bLength 12 12 descriptor length 18 bytes 1 bDescriptorType 01 01 type DEVICE 2 bcdUSB 00 00 refer to Universal Serial Bus Specification Rev 2 0 3 02 02 4 bDeviceClass 09 09 HUB CLASSCODE 5 bDeviceSubClass 00 00 HubSubClassCode 6 bDeviceProtocol 00 01 HubProtocolHSpeedOneTT 7 bMaxPacketSize0 40 40 packet size 64 bytes 8 idVendor ST Ericsson vendor ID 04CC be customized 9 04 04 10 idProduct 21 21 the ISP1521 product ID can be customized 11 15 15 12 bcdDevice 00 00 device ID can be customized 13 02 02 14 iManufacturer 01 01 can be customized 15 iProduct 02 02 can be customized 16 iSerialNumber 03 03 can be Customized this value must be unique 17 bNumConfigurations 01 01 one configuration CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 24 of 53 ISP1521 Mp ERICSSON Hi Speed USB hub controller Table 16 Device qualifier descriptor Offset Field name Value hex Comments bytes Full speed High speed 0 bLe
28. V min 100 mV 25 mV 475 V min 5 1 V KICK UP VBus POWER SUPPLY low ohmic hub board D 3 regulated sense resistor resistance D 27 for overcurrent i 7 detecion SP1521 pMOS bh GND svvitch SHIELD PSWn N 004aaa265 1 Includes PCB traces ferrite beads and so on Fig 6 Typical voltage drop components in self povvered mode using global overcurrent detection PSWn N pins have integrated weak pull up resistors inside the chip Table 5 Power switching mode pin configuration Power switching mode PSW1 N PSW2 N PSW3 N PSVV4 N PSW5 N PSW6 N PSW7 N None ground ground ground ground ground ground ground Ganged internal ground ground ground ground ground ground pull up Individual internal internal internal internal internal internal internal pull up pull up pull up pull up pull up pull up pull up 8 1 3 Overcurrent protection mode The ISP1521 supports all overcurrent protection modes none global and individual No overcurrent protection mode reporting is selected when pin NOOC HIGH Global and individual overcurrent protection modes are selected using pins PSWn_N following power switching modes selection scheme see Table 6 CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 14 of 53 ST 59 ERICSSON ISP1521 Hi Speed USB hub controller For global overcurrent protection mode only PSW1_N and OC1_N are active that is
29. ata out valid time tHD STA SU DAT HD DAT SCL H SCL L SU ST gt 7 c o 004aaa814 Fig 16 1 C bus timing CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 42 of 53 Sc ISP1521 Hi Speed USB hub controller 16 Application information 16 1 Descriptor configuration selection upstream facing port GoodLink E 17C bus ISP1521 U 1 1 external microcontroller I I 1 I O L acting as 12 master 1 EEPROM tot 1 I green and 2 green and 1 USB function 1 amber LEDs am un 55 70 2 port 1 port 7 004aaa302 V 2 v 7 USB downstream facing ports The 12 cannot be shared between the EEPROM and the external microcontroller see Table 11 1 The function on port 7 which is a nonremovable port is optional Fig 17 Descriptors configuration selection application diagram 16 2 Overcurrent detection limit adjustment For an overcurrent limit of 500 mA per port a PMOS with Rpson of approximately 100 mQ is required If a PMOS with a lower Rpson is used analog overcurrent detection can be adjusted by using a series resistor see Figure 18 AVpmos AV trip AViripiintrinsic loc nom x Radj oc Where AVpmos voltage drop on PMOS loc nom 0 6 pA 5V J oc Radj oc
30. ates all the Original USB IN OUT or SETUP tokens for the downstream facing ports while the upstream facing port is in high speed mode The responses from the Original USB devices are collected in TT buffers until the end of the complete split transaction clears TT buffers ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 9 of 53 ST 59 ERICSSON ISP1521 7 7 7 CD00222695 2 5 2 6 2 7 7 3 7 4 7 5 7 6 7 7 Hi Speed USB hub controller Hub repeater A hub repeater manages connectivity on a per packet basis It implements packet signaling connectivity and resume connectivity There are two repeaters in the ISP1521 a Hi Speed USB repeater and an Original USB repeater The only major difference between these two repeaters is the speed at which they operate When the hub is connected to an Original USB system it automatically switches itself to function as an Original USB hub Hub and port controllers The hub controller provides status report The port controller provides control for individual downstream facing ports it controls the port routing module Any port status change will be reported to the host using the hub status change interrupt endpoint Bit clock recovery The bit clock recovery circuit extracts the clock from the incoming USB data stream Phase locked loop clock multiplier A 12 MHz to 480 MHz clock multiplier Phase Locked Loop
31. byte 0 byte 1 bytes 2 3 bytes 4 5 bytes 6 7 bits 7 to 0 hex hex hex hex StopTT 0010 0011 11 00 00 01 00 00 00 none Test modes Test J 0010 0011 03 15 00 portz 01 00 00 none Test K 0010 0011 03 15 00 portz 02 00 00 none Test SEO NAK 0010 0011 03 15 00 ports 03 00 00 none Test Packet 0010 0011 03 15 00 portz 04 00 00 none Test Force Enable 0010 0011 03 15 00 portz 05 00 00 none 1 Returned value in bytes 2 Feature selector value see Table 25 3 Downstream port identifier 1 to N where N is the number of enabled ports 2 to 7 4 Returns vendor specific data Table 25 Hub class feature selector Feature selector name Recipient Value C HUB LOCAL POWER hub 00 C HUB OVER CURRENT hub 01 PORT CONNECTION port 00 PORT ENABLE port 01 PORT SUSPEND port 02 PORT OVER CURRENT port 03 PORT RESET port 04 PORT POWER port 08 PORT LOW SPEED port 09 C PORT CONNECTION port 16 C PORT ENABLE port 17 C PORT SUSPEND port 18 C PORT OVER CURRENT port 19 C PORT RESET port 20 PORT TEST port 21 PORT INDICATOR port 22 11 3 11 3 1 CD00222695 Detailed responses to hub requests Get configuration This request returns the configuration value of the device This request returns 1 byte of data see Table 26 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 29 of 53 d ST 59 ERICSSON ISP1521 11 3 2 11 3 3 11 3 4 11 3 5 CD
32. defined as Data transfer is initiated only when the bus is not busy Changes in the data line occur when the clock is LOW and must be stable when the clock is HIGH Any changes in data lines when the clock is HIGH will be interpreted as control signals 8 2 1 1 Different conditions on I7C bus The I C bus protocol defines the following conditions Not busy both SDA and SCL remain HIGH START a HIGH to LOW transition on SDA while SCL is HIGH STOP a LOW to HIGH transition on SDA while SCL is HIGH Data valid after a START condition data on SDA must be stable for the duration of the HIGH period of SCL 8 2 1 2 Data transfer The master initiates each data transfer using a START condition and terminates it by generating a STOP condition To facilitate the next byte transfer each byte of data must be acknowledged by the receiver The acknowledgment is done by pulling the SDA line LOW on the ninth bit of the data An extra clock pulse must be generated by the master to accommodate this bit For details on the operation of the bus refer to The 7C bus specification 8 2 1 3 12 address CD00222695 The address of the ISP1521 is given in Table 10 Table 10 12 5 slave address Bit MSB Slave address LSB Write A7 A6 A5 A4 A3 A2 A1 Value 0 0 1 1 0 1 0 0 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 16 of 53 BicssoN I
33. downstream connector This includes a voltage drop across the Power supply connector Hub PCB power and ground traces ferrite beads Power switch FET on resistance Overcurrent sense device The PCB resistance and power supply connector resistance may cause a drop of 25 mV leaving only 75 mV as the voltage drop allowed across the power switch and overcurrent sense device Individual voltage drop components are shown in Figure 5 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 13 of 53 ISP1521 Hi Speed USB hub controller ST 59 ERICSSON For global overcurrent detection an increased voltage drop is needed for the overcurrent sense device in this case a lovv ohmic resistor This can be realized by using a special power supply of 5 1 V 3 96 as shown in Figure 6 The PCB resistance may cause a drop of 25 mV which leaves 75 mV for the power switch and overcurrent sense device voltage drop 75 mV voltage drop 4 85 V min 25 mV 4 75 V min 5V VBus POVVER SUPPLY hub board 3 96 regulated resistance 1 0 por zu ISP1521 low ohmic GND connector power switch PMOS switch SHIELD PSWn_N 004aaa264 1 Includes PCB traces ferrite beads and so on Fig 5 Typical voltage drop components in self powered mode using individual overcurrent detection voltage drop 75 mV voltage drop voltage drop 4 95
34. e resistor LI for overcurrent 1 detection downstream port connector T1 ferrite bead F1 il 4 75V min 47 KQ sul H 1 TEST HIGH 3 3 V or 5 0V Fig 20 Self powered hub ganged port power switching global overcurrent detection 5 4 SHIELD ferrite bead Ft V I 31475v PUS 120 uF min GND SHIELD 004aaa306 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 45 of 53 ISP1521 Hi Speed USB hub controller 17 Test information VBus 15 80 DER 50 Q coax D DMn 1580 50 O coax D GND 4 mdb273 1430 1430 777 777 1 Transmitter connected to 50 O inputs of a high speed differential oscilloscope Receiver connected to 50 O outputs of a high speed differential data generator Fig 21 High speed transmitter and receiver test circuit 3 3 V 1 5 kQ 5 RPU DP n O test point 0 15kQ 777 77 DMn O test point e 0L 15kQ 777 m mdb274 1 C 50 pF for full speed Fig 22 Full speed test circuit CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 46 of 53 ISP1521 Hi Speed USB hub controller 18 Package ou
35. ection overcurrent sense input for downstream facing port 4 analog digital ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 5 of 53 ST 59 ERICSSON ISP1521 CD00222695 Hi Speed USB hub controller Table 2 Pin description continued Symboll11 Pin Type DescriptioniZ1 PSVV4 N 33 output power switch control output open drain with an internal pull up resistor for downstream facing port 4 input function of the pin when used as an input is given in Table 5 OC3_N 34 Al overcurrent sense input for downstream facing port 3 analog digital PSW3 N 35 output power switch control output open drain with an internal pull up resistor for downstream facing port 3 input function of the pin when used as an input is given in Table 5 OC7 N 36 All overcurrent sense input for downstream facing port 7 analog digital PSW7 N 37 VO output power switch control output open drain with an internal pull up resistor for downstream facing port 7 input function of the pin when used as an input is given in Table 5 OC2 N 38 Al overcurrent sense input for downstream facing port 2 analog digital PSW2 N 39 output power switch control output open drain with an internal pull up resistor for downstream facing port 2 input function of the pin when used as an input is given in Table 5 RESET N 40 1 asynchronous reset input when reset is active
36. ed 0 2 Table 32 Get port status change response wPortChange Bit Function Value Description 0 connect status change 0 no change in the current connect status 1 change in the current connect status 1 port enable or disable change 0 port is enabled 1 port is disabled ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 31 of 53 BicssoN ISP1521 Hi Speed USB hub controller Table 32 Get port status change response wPortChange continued Bit Function Value Description 2 suspend change 0 no change 1 resume complete 3 overcurrent indicator change 0 no change in the overcurrent indicator 1 change in the overcurrent indicator 4 reset change 0 no change 1 reset complete 5 to 15 reserved 0 11 4 Various get descriptors bmRequestType 1000 0000b bmRequest GET DESCRIPTOR 6 Table 33 Get descriptor request Request name Get device descriptor Get configuration descriptor Get language ID string descriptor Get manufacturer string descriptor Get product string descriptor Get serial number string descriptor wValue windex Descriptor index 00 00 00 01 02 03 Descriptor type 01 02 03 03 03 03 Zero language ID 0 Data device descriptor configuration interface and endpoint descriptors language ID support string manufacturer string in LANGID n product string in LANGID n serial number strin
37. eviceRemovable 00 00 seven downstream facing ports no embedded port PortPwrCtrlMask FF FF 1 CD00222695 Value in units of 2 ms ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 26 of 53 ST 59 ERICSSON ISP1521 Hi Speed USB hub controller Table 22 wHubCharacteristics bit description Bit Function Value Description DO D1 logical power switching mode 00 ganged 01 individual and multiple ganged 10 none 11 D2 compound hub selection 0 non compound 1 compound D3 D4 overcurrent protection mode 00 global 01 individual and multiple ganged 10 none 11 D5 D6 E D7 port indicator 0 global feature 11 Hub requests The hub must react to a variety of requests initiated by the host Some requests are standard and are implemented by any USB device whereas others are hub class specific 11 1 Standard USB requests Table 23 shows supported standard USB requests Table 23 Standard USB requests Request bmRequestType byte 0 bits 7 to 0 Address Set Address 0000 0000 Configuration Get Configuration 1000 0000 Set Configuration 0 0000 0000 Set Configuration 1 0000 0000 Descriptors Get Configuration 1000 0000 Descriptor Get Device Descriptor 1000 0000 Get String Descriptor 0 1000 0000 Get String Descriptor 1 1000 0000 Get String Descriptor 2 1000 0000 Get String Descriptor 3 1000 0000 CD00222695 bRequest wValue byte 1
38. g amber LED port indicators are disabled to signify that the port is nonremovable see Table 8 More than one nonremovable port can be specified by appropriately connecting the corresponding amber LED indicators At least one port should however be left as a removable port The detection of any nonremovable port sets the hub descriptor to a compound hub Table 8 Nonremovable port pin configuration AMBn_N n 1 to 7 Nonremovable port Ground nonremovable Pull up with amber LED removable Port indicator support The port indicator support can be disabled by grounding all green port indicators all pins GRNn_N see Table 9 This is a global feature You cannot disable port indicators for only one port ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 15 of 53 s ERICSSON ISP1521 Hi Speed USB hub controller Table 9 Port indicator support pin configuration GRN1 N to GRN7_N Port indicator support Ground not supported LED pull up green LED for at least one port supported 8 2 Device descriptors and string descriptors settings using 12 8 2 1 Background information on 12 5 The I C bus is suitable for bidirectional communication between ICs or modules It consists of two bidirectional lines SDA for data signals and SCL for clock signals Both these lines must be connected to a positive supply voltage through a pull up resistor The basic I2C bus protocol is
39. g in LANGID n CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 32 of 53 ST 59 ERICSSON ISP1521 12 Limiting values Hi Speed USB hub controller Table 34 Limiting values In accordance with the Absolute Maximum Rating System IEC 60134 Symbol Parameter Conditions Min Max Unit Vcc 3v3 supply voltage 3 3 V 0 5 4 6 V VREF 5V0 input reference voltage 5 0 V 0 5 6 0 V Vivo input voltage on 5 V buffers 3 0V Vcc lt 3 6 V 11 0 5 6 0 V Vi 3v3 3 3 V input voltage 3 0 V lt Vcc lt 3 6 V 0 5 4 6 V output voltage on 3 3 V buffers 0 5 4 6 V liu latch up current Vie 0 V or Vi gt Vec 100 mA Vesd electrostatic discharge voltage on pins DM1 to DM7 DP1 to DP7 2191 4000 4000 V OC1 N to OC7 N and all Vngr svo and GND pins lu lt 1 uA on all other pins lu 1 pA 12131 2000 2000 V Tstg storage temperature 40 125 C 1 Valid only when supply voltage is present 2 Test method available on request 3 Equivalent to discharging a 100 pF capacitor through a 1 5 kQ resistor Human Body Model 13 Recommended operating conditions Table 35 Recommended operating ranges Symbol Parameter Conditions Min Typ Max Unit Vcc 3v3 supply voltage 3 3 V 3 0 3 3 3 6 V VREF 5V0 input reference voltage 5 0 V El 4 5 5 0 5 5 V Vi 3v3 3 3 V input voltage 0 V Vi svo input voltage on 5 V tolerant pins 0 V
40. guaranteed by design TPERIOD B rd differential data lines N 3 3 V crossover point crossover point crossover point 0v x mgr870 consecutive x transitions N x TeERIOD tDJ1 paired transitions N x TPERIOD tpJ2 Tperiop S the bit duration corresponding with the USB data rate Fig 10 Source differential data jitter CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 39 of 53 ST Hi Speed USB hub controller TPERIOD k 43 8 V E c crossover point crossover point differential a a lt extended a data lines OV differential data to source EOP width teopt SEO0 EOP skew gt a 27 B N x Tperiop DEOP receiver EOP width tgopn mgr776 Tperiop S the bit duration corresponding with the USB data rate Full speed timing symbols have a subscript prefix F low speed timing a prefix L Fig 11 Source differential data to EOP transition skew and EOP width TPERIOD 24 M 3 3 V 2 differential data lines 0 MS o U consecutive A A I transitions N x TPERIOD tJR1 paired transitions N x TPERIOD tJR2 Tperiop S the bit duration corresponding with the USB data rate tur is the jitter reference point Fig 12 Receiver differential data jitter
41. gz 15 1521 Hi Speed USB hub controller Rev 07 4 February 2010 Product data sheet 1 General description The ISP1521 is a stand alone Universal Serial Bus USB hub controller IC that complies with Universal Serial Bus Specification Rev 2 0 It supports data transfer at high speed 480 Mbit s full speed 12 Mbit s and low speed 1 5 Mbit s The upstream facing port can be connected to a Hi Speed USB host or hub or to an Original USB host or hub If the upstream facing port is connected to a Hi Speed USB host or hub then the ISP1521 will operate as a Hi Speed USB hub That is it will support high speed full speed and low speed devices connected to its downstream facing ports If the upstream facing port is connected to an Original USB host or hub then the ISP1521 will operate as an Original USB hub That is high speed devices that are connected to its downstream facing ports will operate in full speed mode instead The ISP1521 is a full hardware USB hub controller All Original USB devices connected to the downstream facing ports are handled using a single Transaction Translator TT when operating in a cross version environment This allows the whole 480 Mbit s upstream bandwidth to be shared by all the Original USB devices on its downstream facing ports The ISP1521 has seven downstream facing ports If not used ports 3 to 7 can be disabled The vendor ID product ID and string descriptors on the hub are supplied by the
42. icator open drain for downstream facing port 5 input function of the pin when used as an input is given in Table 9 AMB5 N 77 output amber LED port indicator open drain downstream facing port 5 input function of the pin when used as an input is given in Table 8 HUBGL N 78 O hub GoodLink LED indicator output the LED is off until the hub is configured a transaction between the host and the hub will blink the LED off for 100 ms SCL 79 I2C bus clock open drain see Table 11 SDA 80 lO 12 data open drain see Table 11 1 Symbol names ending with underscore N for example NAME N represent active LOW signals 2 The maximum current the ISP1521 can sink on a pin is 8 mA 3 To disable a downstream port n connect both pins DPn and DMn to 3 3 V unused ports must be disabled in reverse order starting from port 7 4 Downstream ports 1 and 2 cannot be disabled CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 8 of 53 d ST 59 ERICSSON ISP1521 Hi Speed USB hub controller 7 Functional description 7 1 7 2 7 2 1 7 2 2 7 2 3 7 2 4 CD00222695 Analog transceivers The integrated transceivers directly interface to USB lines They can transmit and receive serial data at high speed 480 Mbit s full speed 12 Mbit s and low speed 1 5 Mbit s Hub controller core The main components of the hub core
43. in this mode the remaining overcurrent indicator pins are disabled To inhibit the analog overcurrent detection OC N pins must be connected to Vngr svo Table 6 Overcurrent protection mode pin configuration Power switching mode None Global Individual NOOC PSW1_N PSW2N PSW3_N PSWAN PSW5_N PSW6N PSW7_N HIGH ground ground ground ground ground ground ground LOW internal ground ground ground ground ground ground pull up LOW internal internal internal internal internal internal internal pull up pull up pull up pull up pull up pull up pull up CD00222695 Both analog and digital overcurrent modes are supported see Table 7 For digital overcurrent detection the normal digital TTL level is accepted on overcurrent input pins For analog overcurrent detection the threshold is given in Section 14 In this mode to filter out false overcurrent conditions because of in rush and spikes a dead time of 15 ms is built into the IC that is overcurrent must persist for 15 ms before it is reported to the host Table 7 Overcurrent detection mode selection pin configuration Pin ADOC Mode selection Description 3 3 Vor 5 0 V analog threshold AVtrip Ground digital normal digital TTL level Nonremovable port A nonremovable port by definition is a port that is embedded inside the hub application box and is not externally accessible The LED port indicators pins AMBn_N of such a port are not used Therefore the correspondin
44. ion Number of physical DM1 DP1 DM2 DP2 DM4 DP4 DMS5 DP5 6 DM7 DP7 downstream facing port 7 15 ko 15 15 ko 15 ko 15 KQ 15 k 15 pull down pull down pull down pull down pull down pull down X pull down 15 kO 15 15 ko 15 ko 15 kO 15 pull down pull down pull down pull down pull down pull down 15 ko 15 15 ko 15 ko 15 KQ Vcc Vcc pull down pull down pull down pull down pull down 15 15 KQ 15 15 kO Vec Vec Vec pull down pull down pull down pull down 15 ko 15 15 Vcc Vcc Vcc pull down pull down pull down 15 ko 15 Vcc Vcc Vec Vec pull down pull down 8 1 2 Power switching 8 1 2 1 CD00222695 Power switching of downstream ports can be done individually or ganged where all ports are simultaneously switched with one power switch The ISP1521 supports both modes which can be selected using input PSWn_N see Table 5 Voltage drop requirements Self powered hubs are required to provide a minimum of 4 75 V to its output port connectors at all legal load conditions To comply with Underwriters Laboratory Inc UL safety requirements the power from any port must be limited to 25 W 5 A at 5 V Overcurrent protection may be implemented on a global or individual basis Assuming a 5 V 3 96 power supply the worst case supply voltage is 4 85 V This only allows a voltage drop of 100 mV across the hub Printed Circuit Board PCB to each
45. ion limit optional 43 Self powered hub individual port power switching individual overcurrent detection 44 Self powered hub ganged port power switching global overcurrent detection 45 High speed transmitter and receiver test circuit 46 Full speed 22 2222 46 Package outline SOT315 1 LQFP80 47 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 51 of 53 ST 59 ERICSSON ISP1521 24 Contents Hi Speed USB hub controller 1 General description 1 2 Features R osd renos a Lana y bai 2 3 Applications 2 4 Ordering information 2 5 Block diagram 3 6 Pinning information 4 6 1 PINNING ic ee ea a R heehee ees 4 6 2 Pin description 4 7 Functional description 9 7 1 Analog transceivers 9 7 2 Hub controller core 9 7 2 1 ST Ericsson serial interface engine 9 7 2 2 iiir eli Rr year 9 7 2 3 Transaction 4 2 222222 9 7 2 4 Mini Host Controller 9 7 2 5 Hub repeater 10 7 2 6 Hub and port controllers 10 7 2 7 Bit clock recovery 10 7 3
46. istics full speed source electrical characteristics Voc 3 0 V to 3 6 V Tamb 40 C to 70 test circuit Figure 22 unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Driver characteristics FR rise time C 50 pF 10 to 90 96 of 4 20 ns Mou Votl ter fall time C 50 pF 90 to 10 of 4 20 ns Mou Votl FRFM differential rise and rall time El 90 111 1 matching Vers output signal crossover voltage 1121 1 3 2 0 V Data source timingl l tout source jitter total including see Figure 10 DI 3 5 3 5 ns frequency tolerance to next transition tpJ2 source jitter total including see Figure 10 El 4 4 ns frequency tolerance for paired transitions FEOPT source SEO interval of EOP see Figure 11 160 175 ns FDEOP source jitter for differential transition see Figure 11 2 5 ns to SEO transition Receiver timingl2l Uni receiver jitter to next transition see Figure 12 18 5 18 5 ns receiver jitter for paired transitions see Figure 12 9 9 ns FEOPR receiver SEO interval of EOP accepted as EOP see Figure 11 82 ns test width of SEO interval during rejected as EOP see Figure 13 14 ns differential transition CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 38 of 53 BicssoN ISP1521 Hi Speed USB hub controller Table 44 Dynamic characteristics full speed source electrical characteristics
47. ked Loop SIE Serial Interface Engine SOP Start of Packet TT Transaction Translator TTL Transistor Transistor Logic USB Universal Serial Bus CD00222695 1 Universal Serial Bus Specification Rev 2 0 2 The 2C bus specification 3 ISP1521 Hi Speed USB hub demo board user manual UM10011 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 48 of 53 BicssoN ISP1521 Hi Speed USB hub controller 21 Revision history Table 48 Revision history Revision Release date Data sheet status Change notice 7 20100204 Product data sheet Modifications Updated the filename according to the latest corporate standards Table 37 Static characteristics digital input and output updated AV trip Figure 9 Overcurrent trip response timing changed Vcc to VBus Figure 21 High speed transmitter and receiver test circuit changed Vcc to Vgus 6 20090929 Product data sheet 5 20090129 Product data sheet 4 20060330 Product data sheet 3 9397 750 13702 20041124 Product data 2 9397 750 11691 20040212 Product data 1 9397 750 10691 20030625 Preliminary data CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 49 of 53 ISP1521 Hi Speed USB hub controller 22 Tables Table 1 Ordering information 2 Table 48 Revision hist
48. n 22222 29 11 3 2 Get device status 22 30 11 3 3 Get interface status 30 11 3 4 Get endpoint status 30 11 3 5 Get hub status 30 CD00222695 11 3 6 11 4 12 13 14 15 16 16 1 16 2 16 3 17 18 19 20 21 22 23 24 Get port status 31 Various get descriptors 32 Limiting values 33 Recommended operating conditions 33 Static characteristics 34 Dynamic characteristics 37 Application information 43 Descriptor configuration selection 43 Overcurrent detection limit adjustment 43 Self powered hub configurations 44 Test information 46 Package outline 47 Abbreviations 48 References 48 Revision history 49 Tables vu oie a on de k 50 Figures cose natem a 51 Contents oie uu NN R er N RR ER ees 52 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 52 of 53 BicssoN ISP1521 Hi Speed USB hub controller Please Read Carefully The contents of this document are subject to change without prior notice ST Ericsson makes no representation or warranty of any nature whatsoever neither expressed
49. n in Table 8 output green LED port indicator open drain for downstream facing port 2 input function of the pin when used as an input is given in Table 9 output amber LED port indicator open drain for downstream facing port 2 input function of the pin when used as an input is given in Table 8 reference voltage 5 V 5 96 used to power internal pull up resistors of PSWn N pins and also for the analog overcurrent detection supply voltage 3 3 3 V digital ground supply output green LED port indicator open drain for downstream facing port 1 input function of the pin when used as an input is given in Table 9 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 7 of 53 ISP1521 joe ST ERICSSON Hi Speed USB hub controller Table 2 Pin description continued Symboll11 Pin Type DescriptioniZ1 AMB1_N 73 output amber LED port indicator open drain downstream facing port 1 input function of the pin when used as an input is given in Table 8 GRN6 N 74 output green LED port indicator open drain downstream facing port 6 input function of the pin when used as an input is given in Table 9 AMB6_N 75 VO output amber LED port indicator open drain for downstream facing port 6 input function of the pin when used as an input is given in Table 8 GRN5 N 76 lO output green LED port ind
50. nfiguration and allows generic USB status and control access The ISP1521 supports the following descriptor information through its control endpoint 0 Device descriptor Device qualifier descriptor Configuration descriptor nterface descriptor Endpoint descriptor Hub descriptor Other speed configuration descriptor The maximum packet size of this endpoint is 64 bytes Endpoint 1 Endpoint 1 can be accessed only after the hub has been configured by the host by sending the Set Configuration command It is used by the ISP1521 to send the status change information to the host Endpoint 1 is an interrupt endpoint The host polls this endpoint once every 255 ms After the hub is configured an IN token is sent by the host to request the port change status If the hub detects no change in the port status it returns a NAK to this request otherwise the Status Change byte is sent Table 14 shows the content of the change byte ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 23 of 53 ST 59 ERICSSON ISP1521 Table 14 Status Change byte Hi Speed USB hub controller bit allocation Bit Name 0 Hub Status Change 1to7 Port n Status Change Value Description 0 no change in the hub status 1 change in the hub status detected 0 no change in the status of port n n 1 to 7 1 change in the status of port n n 1 to 7 10 Descriptors The I
51. ngr svo V Tamb ambient temperature 40 70 C 1 All internal pull up resistors are connected to this voltage CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 33 of 53 ST 5 ERICSSON ISP1521 14 Static characteristics Hi Speed USB hub controller Table 36 Static characteristics supply pins Vcc 3 0 V to 3 6 V Tamb 40 C to 70 unless otherwise specified Symbol Parameter Conditions Full speed IREF svo supply current 5 V lcc tot total supply current lcc tot lcc1 cez cca loca High speed IcC tot total supply current no device connected one active device connected two active devices connected three active devices connected four active devices connected five active devices connected Six active devices connected seven active devices connected Min Typ Max Unit 0 5 mA 91 mA RIBI 183 mA 231 mA 276 mA 318 mA 362 mA 400 mA 446 mA 492 mA 1 Irrespective of the number of devices connected the value of Icc is always 91 mA in full speed 2 Total supply current for 3 3 V supply voltage 3 Including Rp drop current Table 37 Static characteristics digital input and output Voc 3 0 V to 3 6 V Tamb 40 to 70 unless otherwise specified U Symbol Parameter Conditions Digital input pins LOW level input voltage Vin HIGH level input v
52. ngth 0A 0A descriptor length 10 bytes 1 bDescriptorType 06 06 type DeviceQualifierType 2 bcdUSB 00 00 refer to Universal Serial Bus Specification Rev 2 0 3 02 02 4 bDeviceClass 09 09 HUB_CLASSCODE 5 bDeviceSubClass 00 00 HubSubClassCode 6 bDeviceProtocol 00 01 HubProtocolHSpeedOneTT 7 bMaxPacketSize0 40 40 packet size 64 bytes 8 bNumConfigurations 01 01 number of configurations Table 17 Other speed configuration descriptor Offset Field name Value hex Comments bytes Full speed High speed 0 bLength 09 09 descriptor length 9 bytes 1 bDescriptorType 07 07 type OtherSpeedConfigurationType 2 wTotalLength 19 19 TotalConfByte 3 00 00 4 bNumInterfaces 01 01 5 bConfigurationValue 01 01 6 iConfiguration 00 00 no string supported 7 bmAttributes EO EO self powered AO AO others 8 bMaxPower 00 00 self powered Table 18 Configuration descriptor Offset Field name Value hex Comments bytes Full speed High speed 0 bLength 09 09 descriptor length 9 bytes 1 bDescriptorType 02 02 type CONFIGURATION 2 wTotalLength 19 19 total length of configuration interface and endpoint 3 00 00 descriptors 25 bytes 4 bNumInterfaces 01 01 one interface 5 bConfigurationValue 01 01 configuration value 1 6 iConfiguration 00 00 no configuration string descriptor 7 bmAttributes EO EO self powered 8 bMaxPowerl 00 00 self powered 1 Value in units of 2 mA CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Re
53. nor implied with respect to the matters addressed in this document including but not limited to warranties of merchantability or fitness for a particular purpose interpretability or interoperability or against infringement of third party intellectual property rights and in no event shall ST Ericsson be liable to any party for any direct indirect incidental and or consequential damages and or loss whatsoever including but not limited to monetary losses or loss of data that might arise from the use of this document or the information in it ST Ericsson and the ST Ericsson logo are trademarks of the ST Ericsson group of companies or used under a license from STMicroelectronics NV or Telefonaktiebolaget LM Ericsson All other names are the property of their respective owners ST Ericsson 2010 All rights reserved Contact information at www stericsson com under Contacts VVVVVV stericsson com CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 53 of 53
54. o 9 LN o o ip o amp aN K a al ArOozozo z 0 5ro zo zozoczi rrEOHDOH OD 0 nw n n n gt n n n n GC W w Ke Fig 2 Pin configuration 6 2 Pin description Table 2 Pin description Symboll11 Pin Type DescriptioniZ1 TEST 1 connect to ground through a 100 kO resistor GND 2 ground supply DMO 3 Al O upstream facing port D connection analog DPO 4 Al O upstream facing port D connection analog RPU 5 Al pull up resistor connection connect this pin through a resistor of 1 5 KO 5 to 3 3 V GND 6 ground supply CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 4 of 53 ST 59 ERICSSON ISP1521 Table 2 Pin description Hi Speed USB hub controller continued Symboll11 RREF GND DM5 DP5 GND Vcc4 GND DM6 DP6 Vcc2 GND DM1 DP1 TEST LOW TEST HIGH OC1 N PSW1_N OC6 N PSW6 N OC5 N PSW5 N GND VREF 5V0 OC4_N CD00222695 Pin 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Type Al AVO AVO AVO AVO AVO AVO Vo Vo 1 0 AI Description reference resistor connection connect this pin through a resistor of 12 KQ 1 96 to an analog band gap ground reference ground supply downstream facing port 5
55. oltage L input leakage current Schmitt trigger input pins Vin LH positive going threshold voltage Vih HL negative going threshold voltage Vhys hysteresis voltage Overcurrent detection pins OC1_N to OC7_N AV trip overcurrent detection trip voltage AV Vocn N Digital output pins VoL LOW level output voltage VoH HIGH level output voltage Open drain output pins loz off state output current Min Typ Max Unit 08 v 20 s V 4 1 uA 14 s 19 V 09 15 V 04 07 v 45 84 110 mV 04 V 2d c 3 V 1 uA 1 All pins are 5 V tolerant CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 34 of 53 BicssoN ISP1521 Hi Speed USB hub controller Table 38 Static characteristics I2C bus interface block Voc 3 0 V to 3 6 V Tamb 40 C to 70 unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Input pin SCL and input output pin SDAHI Vi LOW level input voltage 0 9 V Vin HIGH level input voltage 2 1 V Vhys hysteresis voltage 0 15 V VoL LOW level output voltage 0 4 V tr fall time Cp 10 pF to 400 pF BB 0 250 ns 1 All pins are 5 V tolerant 2 The bus capacitance Cy is specified in pF To meet the specification for Vo and the maximum rise time 300 ns use an external pull up resistor with Rmax 850 Cp kO and Rmin Vcc 0 4 3 kO 3 Output fall time
56. ory 49 Table 2 Pin description 4 Table 3 Configuration parameters 12 Table 4 Downstream facing port number pin configuration gm 13 Table 5 Power switching mode pin configuration 14 Table 6 Overcurrent protection mode pin configuration 15 Table 7 Overcurrent detection mode selection pin configuration ce asa al n al n ea d esi 15 Table 8 Nonremovable port pin configuration 15 Table 9 Port indicator support pin configuration 16 Table 10 I C bus slave address 16 Table 11 Configuration method 17 Table 12 ROM or EEPROM detailed map 18 Table 13 Hub endpoints 23 Table 14 Status Change byte bit allocation 24 Table 15 Device descriptor 24 Table 16 Device qualifier descriptor 25 Table 17 Other speed configuration descriptor 25 Table 18 Configuration descriptor 25 Table 19 Interface descriptor 26 Table 20 Endpoint descriptor 22 22 222 26 Table 21 Hub descriptor 26 Table 22 wHubCharacteristics bit description 27 Table 23 Standard USB requests 27 Table 24 Hub class requests 28 Table 25 Hub class feature selector 29 Table 26 Get hub configuration
57. rent sense timing Vcc 3 0 V to 3 6 V Tamb 40 to 70 TC unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Overcurrent sense pins OC1 N to OC7 N overcurrent trip response time from see Figure 9 OCn_N LOW to PSWn_N HIGH 1 19 VBus overcurrent input OV VBus power switch output 0v mbl032 Overcurrent input pins N power switch output pins PSWn_N Fig 9 Overcurrent trip response timing Table 42 Dynamic characteristics digital pins Voc 3 0 V to 3 6 V Tamb 40 to 70 unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit uU output transition time 4 15 ns LH 1 All pins are 5 V tolerant CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 37 of 53 BicssoN ISP1521 Hi Speed USB hub controller Table 43 Dynamic characteristics high speed source electrical characteristics Voc 3 0 V to 3 6 V Tamp 40 C to 70 TC test circuit Figure 21 unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Driver characteristics tusn rise time 10 to 90 96 500 ps HsF fall time 90 96 to 10 500 ps Clock timing tusprat high speed data rate 479 76 480 24 Mbit s HSFRAM microframe interval 124 9375 125 0625 us HSRFI consecutive microframe interval 1 four high speed ns difference bit times Table 44 Dynamic character
58. response 30 Table 27 Get device status response 30 Table 28 Get interface status response 30 Table 29 Get endpoint status response 30 Table 30 Get hub status response 30 Table 31 Get port status response wPortStatus 31 Table 32 Get port status change response wPortChange 31 Table 33 Get descriptor request 32 Table 34 Limiting values 33 Table 35 Recommended operating ranges 33 Table 36 Static characteristics supply pins 34 Table 37 Static characteristics digital input and output 34 Table 38 Static characteristics I2C bus interface block 35 Table 39 Static characteristics USB interface block DPO to DP7 and DMO to DM7 35 Table 40 Dynamic characteristics system clock timing 37 Table 41 Dynamic characteristics overcurrent sense UMING PP 37 Table 42 Dynamic characteristics digital pins 37 Table 43 Dynamic characteristics high speed source electrical characteristics 38 Table 44 Dynamic characteristics full speed source electrical characteristics u nauau 38 Table 45 Dynamic characteristics low speed source electrical 6 22 39 Table 46 Dynamic characteristics 12 pins SDA and SCL EET 42 Table 47 Abbreviations 4
59. t no yes Configuration method Pin control Softvvare control Control pin Reference Affected field Reference DMT DP1 to see Section 8 1 1 bNbrPorts0 see Table 22 DM7 DP7 PSW1_N to see Section 8 1 2 wHubCharacteristics see Table 22 PSW7_N bits D1 and DO bPwrOn2PwrGood time interval NOOC and see Section 8 1 3 wHubCharacteristics see Table 22 OC1_N to bits D4 and D3 OC7_N AMBn_N see Section 8 1 4 wHubCharacteristics see Table 22 bit D2 compound hub DeviceRemovable bit map all GRNn_N see Section 8 1 5 wHubCharacteristics see Table 22 bit D7 1 Multiple ganged power mode is reported as individual power mode refer to Universal Serial Bus Specification Rev 2 0 2 When the hub uses global overcurrent protection mode the overcurrent indication is through wHubStatus field bit 1 overcurrent and the corresponding change bit overcurrent change CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 12 of 53 d ST 59 ERICSSON ISP1521 8 1 8 1 1 Hi Speed USB hub controller Configuration through I O pins Number of downstream facing ports To discount a physical downstream facing port connect pins DP and DM of that downstream facing port to Vcc 3 3 V starting from the highest port number 7 see Table 4 The sum of physical ports configured is reflected in the bNbrPorts field Table 4 Downstream facing port number pin configurat
60. ta sheet Rev 07 4 February 2010 35 of 53 BicssoN ISP1521 Hi Speed USB hub controller Table 39 Static characteristics USB interface block to DP7 and DMO to DM7 continued Voc 3 0 V to 3 6 V Tamb 40 C to 70 unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit Resistance ZINP input impedance 10 MQ Termination VTERM termination voltage for pull up resistor on pin 3 0 3 6 V RPU 1 For minimum value the HS termination resistor is disabled and the pull up resistor is connected Only during reset when both the hub and the device are capable of high speed operation 2 Characterized only not tested Limits guaranteed by design CD00222695 ST ERICSSON 2010 All rights reserved Product data sheet Rev 07 4 February 2010 36 of 53 TN ISP1521 Hi Speed USB hub controller 15 Dynamic characteristics Table 40 Dynamic characteristics system clock timing Symbol Parameter Conditions Min Typ Max Unit Reset tw Por internal power on reset pulse 0 2 1 us width tw REsET n external RESET N pulse width 0 2 US Crystal oscillator fak clock frequency crystal ua 12 MHz External clock input clock duty eycle 50 1 Recommended accuracy of the clock frequency is 500 ppm for the crystal 2 Suggested values for external capacitors when using a crystal are 22 pF to 27 pF Table 41 Dynamic characteristics overcur
61. tline LQFP 0 plastic low profile quad flat package 80 leads body 12 x 12 x 1 4 mm SOT315 1 detail X DIMENSIONS mm are the original dimensions UNIT A Az As bp C Note 1 Plastic or me al protrusions of 0 25 mm maximum per side are not included REFERENCES m muere issue vate SIO IEC JEDEC JEITA OJECTIO SOT315 1 136E15 MS 026 E 03 02 25 Fig 23 Package outline SOT315 1 LQFP80 CD00222695 ST ERICSSON 2010 All rights reserved 47 of 53 Product data sheet Rev 07 4 February 2010 ST 59 ERICSSON ISP1521 19 Abbreviations Hi Speed USB hub controller 20 References Table 47 Abbreviations Acronym Description ACPI Advanced Configuration and Power Interface CRC Cyclical Redundancy Check EEPROM Electronically Erasable Programmable Read Only Memory EMI ElectroMagnetic Interference EOP End of Packet ESD ElectroStatic Discharge FET Field Effect Transistor HS High Speed LSB Least Significant Bit MSB Most Significant Bit MOSFET Metal Oxide Silicon Field Effect Transistor NAK Not AcKnowledge PCB Printed Circuit Board PID Packet IDentifier PLL Phase Loc
62. v 07 4 February 2010 25 of 53 BicssoN ISP1521 Hi Speed USB hub controller Table 19 Interface descriptor Offset Field name Value hex Comments bytes Full speed High speed 0 bLength 09 09 descriptor length 9 bytes 1 bDescriptorType 04 04 type INTERFACE 2 binterfaceNumber 00 00 3 bAlternateSetting 00 00 no alternate setting 4 bNumEndpoints 01 01 status change interrupt endpoint 5 binterfaceClass 09 09 HUB CLASSCODE 6 binterfaceSubClass 00 00 HubSubClassCode 7 binterfaceProtocol 00 00 8 binterface 00 00 no interface string descriptor Table 20 Endpoint descriptor Offset Field name Value hex Comments bytes Full speed High speed 0 bLength 07 07 descriptor length 7 bytes 1 bDescriptorType 05 05 type ENDPOINT 2 bEndpointAddress 81 81 endpoint 1 at address number 1 3 bmAttributes 03 03 interrupt endpoint 4 wMaxPacketSize 01 01 packet size 1 byte 5 00 00 6 binterval FF UC polling interval Table 21 Hub descriptor Offset Field name Value hex Comments bytes Full speed High speed 0 bDescLength 09 09 descriptor length 9 bytes 1 bDescriptor Type 29 29 type HUB 2 bNbrPorts 07 07 number of enabled downstream facing ports selectable by 06 06 the DP DM strapping 05 05 04 04 03 03 02 02 3 wHubCharacteristics A9 A9 see Table 22 4 00 00 5 bPwrOn2PwrGoodl 32 32 ganged or individual mode 100 ms 00 00 no power switching mode 0 ms bHubContrCurrent 64 64 D

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