Cogent i.MX21 LiteKit for Freescale MC9328MX21 Hardware
Contents
1. 9 4 Micromonitor Commands 9 5 Getting More Information about Micromonitor EET List of Tables Wable 1 CSBS35FS Address nre eiae fr Table 2 MC9328MX21 Chip Select Assignments Table 3 MC9328MX21 GPIO Port A Pin Assignments Table 4 MC9328MX21 Port B Pin Assignments Table 5 MC9328MX21 GPIO Port C Pin Assignments Table 6 MC9328MX21 GPIO Port D Pin Assignments Table 7 MC9328MX21 GPIO Port E Pin Assignments Table 8 MC9328MX21 GPIO Port F Pin Assignments Table 9 CSB535FS CSB925 Interrupt Pin Assignments Table 10 Compact Flash GPIO Assignments 18 Table 11 Expansion Connector Mating Height Table 2 22 Table 12 P1 Expansion Connector 1 Pindut aai kaka gagan anakan aa kakak ia apikan kaka Table 13 P2 Expansion Connector 2 Pinout Table 14 P3 Expansion Conrneclor 3 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 PAGE 3 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 1 WARRANTY The enclosed product the Product a part of the Cogent Modular Architecture or Cogent Single Board series is warranted by Cogent Computer Systems Inc Cogent for a period o2. 1 GPIO PC20 to PC27 must be programmed for SSI Function 125 Mode 5512 is used for the transmit DAC function while SSI1 is used for the receive ADC function 2 WM8731 uses the 2 interface for control GPIO PD18 SDA and PD17 SCL are used for this function Note that they can be used as bit bang 2 they may be programmed to the MC9328MX21 I2C Controller function 3 7 GPIO LED S AND SWITCHES Two Yellow LED s are located on the CSB535FS CPU Module along with two pushbutton switches The LED s are assigned to GPIO PC14 LEDO and PC15 LED1 while the switches are assigned to 22 USR 5 0 PA23 05 5 1 A low to the LED will turn the LED on The switches will drive the associated GPIO low when pressed Note that there is no de bouncing in hardware for the switches PAGE 7 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 3 8 12 LED S AND SWITCHES A Phillips PCA9554 2 GPIO Expander is provided to interface to four red LED s and four pushbutton switches on the CSB935FS The 2 address of the PCA9554 is 0x20 Refer to the schematic for the pin assignments CPU GPIO PEO will go low also whenever any one of the switches is pressed As with the GPIO switches there is no hardware de bouncing circuitry 3 9 3 5 QVGA TFT LCD WITH TOUCH A 3 5 Portrait Mode QVGA LCD provides the i MX21 LiteKit with a low power transflective LCD display with touch overlay simi
3. 5 Texas Instruments ADS7846E Touch Screen Controller Datasheet SBAS125G June 2003 PAGE 5 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 3 ON BOARD DEVICES 3 1 CSB535FS ADDRESS MAP The following table describes the Address Map of the i MX21 Refer to the MC9328MX21 documentation for information regarding on chip peripheral addressing Wait Address Address Description States Start End 0 000 0000 0000 OxC3FF FFFF G4Mbyte SDRAM omis 0000 OxC8FF FFFF 8Mbyte StrataFlash 16 0xCC00 0000 OxC1FF FFFF CS8900a Ethernet Controller Pin assigned to SDCSO Not Available 685 16 8 0x1400 0000 0x17FF FFFF Compact Flash Socket CPLD Table 1 CSB535FS Address 3 2 8 16 32 STRATAFLASH The i MX21 LiteKit uses an Intel StrataFlash 28F640 device or equivalent for boot memory 0 must be set to 16 bits width this is the default on reset using hardware strapping and 10 wait states the default is 64 wait states after reset 3 3 64MBYTE SDRAM The i MX21 LiteKit uses two 16Mx16 PC100 or faster SDRAM devices for system memory The specifications of these devices provides for 100Mhz operation The maximum setting is 99 5Mhz allowing CAS Latency 2 and RAS to CAS 2 modes to be set Refer to the MC9328MX21 User Manual for more information on programming the SDRAM Memory Controller Note that the
4. 21 Chip Select Assignments 4 3 MC9328MX21 GENERAL PURPOSE I O PORT PIN ASSIGNMENTS The MC9328MX21 has six General Purpose ports to The GPIO usage on the i MX21 LiteKit is described in the following tables Note that it is the responsibility of software to setup these bits for the correct direction and default state as well as the assignment of alternate functions PAGE 9 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Port A Bit DIR Usage Alternate Functions Notes PA1 Unavailable PA2 Unavailable PA3 Unavailable 4 Unavailable 5 Out LCD_PCLK LCD Pixel Clock PA6 Out LCD_B1 LCD Blue Bit 1 LSB PA7 Out LCD_B2 LCD Blue Bit 2 Out LCD_B3 LCD Blue Bit 3 Out LCD_B4 LCD Blue Bit 4 PA10 Out LCD_B5 LCD Blue Bit 5 MSB PA11 Out LCD GO LCD Green Bit 0 LSB PA12 LCD G1 LCD Green Bit 1 PA13 Out LCD G2 LCD Green Bit 2 PA14 Out LCD G3 LCD Green Bit 3 PA15 Out LCD G4 LCD Green Bit 4 PA16 Out LCD G5 LCD Green Bit 5 MSB PA17 Out LCD_R1 LCD Red Bit 1 LSB PA18 Out LCD_R2 LCD Red Bit 2 PA19 Out LCD_R3 LCD Red Bit 3 PA20 Out LCD_R4 LCD Red Bit 4 PA21 Out LCD R5 LCD Red Bit 5 MSB PA22 In USR SWO User Switch 0 0 switch pressed PA23 In USR SW1 User Switch 1 0 switch pressed PA24 In CF CD Compact Flash Card Detect 0 Card in PA25 Out CF RS
5. The internal MC9328MX21 DMA controller can be used to transfer data between the SD MMC Socket on the i MX21 LiteKit and system memory for very high data rates The SD MMC clock can be programmed up to 20Mhz On the i MX21 LiteKit two GPIO s are used to indicate SD Card Detect GPIO PD25 0 card inserted and SD Write Protect GPIO PD26 0 Write Protected Additionally GPIO PD27 controls power to the socket When 1 power is driven to the SD MMC socket A 0 disables the socket Refer to the MC9328MX21 Users Manual for detailed programming information on the SD MMC Controller 4 9 MC9328MX21 COMPACT FLASH The MC9328MX21 supports the Compact Flash using a CPLD to generate the proper timing signals On the i MX21 LiteKit several GPIO s are used to support the Compact Flash They are shown in the following table GPIO Source Notes PA26 CSB925 CF RDY BSY Polarity depends upon the mode the Compact Flash card is in PAGE 17 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Source Notes PA27 CSB925 CF Power Enable 1 On PA24 CSB925 CF Card Detect 0 Card Present 25 CSB925 CF Reset High True Table 10 Compact Flash GPIO Assignments 4 10 MC9328MX21 USB DEVICE PORT The MC9328MX21 has a single USB1 1 compliant Device Port An on board USB Transceiver provides the physical interface In addition two GPIO s are used for host
6. 14 72 CPU ADDRESS 15 73 3 9V 74 3 3V 75 3 3V 76 3 3 77 3 3V 78 3 3V 79 3 3V 80 3 3V Table 12 P1 Expansion Connector 1 Pinout Expansion Connector P2 Pin Signal Pin Signal 1 Ground 2 Ground 3 Ground 4 Ground 5 Ground 6 Ground 7 Ground 8 Ground 9 CPU CLKOUT 10 11 Ground 12 CPU ADDRESS 9 13 CPU ADDRESS 13 14 CPU ADDRESS 10 15 CPU ADDRESS 11 16 CPU ADDRESS 7 17 CPU ADDRESS 12 18 CPU ADDRESS 8 19 CPU DATA 15 20 CPU ADDRESS 5 21 CPU DATA 14 22 CPU ADDRESS 6 23 CPU DATA 13 24 CPU DATA 11 25 CPU ADDRESS 3 26 1 27 CPU ADDRESS 4 28 CPU ADDRESS 2 29 CPU DATA 12 30 0 31 32 CPU DATA 7 33 EB2 34 CPU DATA 9 35 36 CPU ADDRESS 1 PAGE 24 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 Expansion Connector P2 Pin Signal Pin Signal 37 CPU DATA 10 38 CPU DATA 8 39 DTACK 40 5 41 CS3 42 CPU ADDRESS 0 43 CPU DATA 6 44 DATA 5 45 CS1 46 DATA 4 47 CPU DATA 3 48 CSO 49 CPU DATA 0 50 CPU DATA 2 51 CPU DATA 1 52 R W 53 Ground 54 Ground 55 SD_CMD 56 50 57 Ground 58 Ground 59 SD D2 60 SD_D3 61 SD_DO 62 SD_D1 63 USB_CD 64 05 5 65 UART1 TXD 66 PIRQ ADS7846E 67 E_INT CS8900a 68 PWMO LED
7. Assignments GPIO Port E Bit DIR Usage Alternate Functions Notes PEO Unavailable PE1 Unavailable PE2 Unavailable PES Unavailable PE4 Unavailable Unavailable PE6 Unavailable Unavailable Unavailable Unavailable PE10 Unavailable PE11 Unavailable PE12 Out USB SCON 1 Enable USB Device for 12Mbit PE13 In USB CD 1 USB Device Cable Detected PE14 In 01 RXD Debug UART Receive PE15 In U1_TXD Debug UART Transmit PE16 Unavailable PE17 Out RST OUT MX21 Reset Output PE18 0_00 SD MMC Interface Data Bit 0 PAGE 14 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Port E Bit DIR Usage Alternate Functions Notes PE19 SD_D1 SD MMC Interface Data Bit 1 PE20 0_02 SD MMC Interface Data Bit 2 PE21 SD_D3 SD MMC Interface Data Bit 3 PE22 Out SD SD MMC Interface Command Bit PE23 Out SD SD MMC Interface Clock Bit Table 7 MC9328MX21 GPIO Port E Pin Assignments GPIO Port F Bit DIR Usage Alternate Functions Notes PFO Unavailable PF1 Unavailable PF2 Unavailable Unavailable PF4 Unavailable PF5 Unavailable PF6 Unavailable PF7 Unavailable PF8 Unavailable PF9 Una
8. BKL 69 SPI DOUT 70 SPI CS 71 12C_INT PCA9554 72 SD WP 73 3 3V 74 3 3 75 3 3V 76 3 3V 77 3 3V 78 3 3V 79 3 3V 80 3 3V Table 13 P2 Expansion Connector 2 Pinout Expansion Connector P3 Pin Signal Pin Signal 1 Ground 2 VIN 3 Ground 4 VIN PAGE 25 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 Expansion Connector P3 Pin Signal Pin Signal 5 Ground 6 VIN 7 Ground 8 VIN 9 RST_IN 10 VIN 11 TSRT 12 VIN 13 l 14 VIN 15 TCK 16 Ground 17 TMS 18 Ground 19 TDI 20 Ground 21 TDO 22 Ground 23 RST OUT 24 Ground 25 BSELO 26 Ground 27 BSEL1 28 VMAIN 29 BSEL2 30 VMAIN 31 BSEL3 32 VMAIN 33 Ground 34 VMAIN 35 Ground 36 VMAIN 37 Ground 38 VMAIN 39 Ground 40 VMAIN Table 14 Expansion Connector Pinout 7 5 CSB535FS TOPSIDE CONNECTORS LED S AND SWITCHES The following diagram shows the location of the connectors LED s and Switches on the CSB535FS CPU Module PAGE 26 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 8 CSB935FS BREAKOUT BOARD CONNECTORS LED S AND SWITCHES 8 1 OVERVIEW This section provides the locations and pinouts of the various connectors on the 1 21 LiteKit CPU Module 8 2 CSB935FS CONNECTORS LED S AND SWITCHES TOPSIDE The following diagram shows the locati
9. SWITCHES 7 1 OVERVIEW This section provides the locations and pinouts of the various connectors on the i MX21 LiteKit CPU Module 7 2 CSB535FS EXPANSION CONNECTOR The following diagram shows the location of the Expansion Connectors and the mounting holes on the CSB535FS The mounting holes are 100 in diameter e IHE ILL LL LL EETA JON CONNECTOR F Lt EXPANS ICON EXPANSION CONNECTOR nap pg n qd CUD 7 3 CSB535FS EXPANSION CONNECTORS P1 and P2 are 80 Pin low profile SMT connectors Hirose part number DF17 3 0 80DS 0 5V is 40 Pin low profile SMT connector Hirose part number DF17 3 0 40DS 0 5V There are two mating connector heights that can be placed on the target board They result in the following board to board and overall heights the CSB935FS uses the 4 0 PAGE 21 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 Mating Connector Board Board Overall Component xx 40 or 80 Height Height Clearance DF17 2 0 xxDP 0 5V 5 0mm 9 0mm 1 0mm DF17 4 0 xxDP 0 5V 7 0mm 11 0mm 3 0mm Table 11 Expansion Connector Mating Height Table The orientation of the Target board connectors is shown in the following drawing The V in the silkscreen indicates Pin 1 80 size is shown 7 4 CSB535FS EXPANSION CONNECTOR PINOUTS The following tables describe the pinouts of th
10. notification and host detect GPIO PC10 drives the USB D line via a 1 5K ohm resistor When the USB device port is connected to a USB host software can indicate to the host that a device is present by driving GPIO PE15 high This indicates to the host both the presence of a USB device and that the device is 12Mbit capable This also allows the MC9328MX21 USB Device software to delay recognition by the Host until it is ready Also GPIO PE14 goes high when the USB device port is connected to and powered from a USB Host This allows the USB device software to recognize when it is actually connected to a host Refer to the MC9328MX21 Users Manual for detailed programming information 4 11 TFT LCD CONTROLLER The MC9328MX21 contains a built in LCD controller On the i MX21 LiteKit this is connected to the 3 5 240x320 LCD Itis beyond the scope of this document to provide complete programming information Please refer to the Micromonitor source code for an example of how to initialize and setup the LCD controller for the 3 5 LCD Refer to the MC9328MX21 Users Manual for more detailed information There are 3 GPIO s used in the interface to the 3 5 or other LCD GPIO PA2 is used as the backlight control A 1 will enable the LED backlight contained in the LCD while a 0 will shut it off Note that the alternate function of GPIO PE5 1 PWMO Pulse Width Modulator 0 This allows the LED backlight intensity to be varied from full on to full o
11. E 28 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 9 MICROMONITOR 9 1 INTRODUCTION TO MICROMONITOR The i MX21 LiteKit is delivered standard with the Micromonitor boot monitor in FLASH Micromonitor was developed and is maintained by Ed Sutter of Lucent Technologies Micromonitor is an open source product and may be copied modified and re used without restriction However neither Cogent nor Lucent is liable for any problems that may arise during the use of Micromonitor including its use with this board 9 2 MICROMONITOR SOFTWARE MEMORY MAP The memory usage by Micromonitor is shown in the following block diagram OxFFFF FFFF 0 0000 0000 TFS Spare Sectors 4 63 8Mbyte 0xC808 0000 FLASH Micromonitor Sectors 0 3 0xC800 0000 0xC700 0000 Application RAM 64Mbyte 0xC020 0000 SDRAM 0000 ESS and Reserved Note All addresses shown are physical addresses 9 3 CONNECTING TO MICROMONITOR As delivered from Cogent Micromonitor is configured to use the Debug UART MC9328MX21 UART 1 The default connection is 38 400 baud 8 N 1 with no handshaking A null modem cable is provided with the 1 21 LiteKit that will connect PAGE 29 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 the CSB535FS to another DTE port such as found on a PC Micromonitor also uses the Ethernet port to listen for connections via UDP 9 4 MICROMONITOR COMMANDS Micromonitor supp
12. E LI 1 E ALWAYS COMPLETE Cogent i MX21 LiteKit for Freescale MC9328MX21 Hardware Reference Manual 2006 Cogent Computer Systems Inc Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 Table of Contents 1 Warranty 2 Overview E 2 2 Reference On Board Devices 3 1 CSB535FS Address Map 3 2 89 16 32Mbyte STRATAFELEASEH titre tt ae tenete e ke 9 3 6 SDRAM r E eERA 3 4 Cirrus Logic CS8900a Ethernet Controller 3 5 ADS7846E 4 Wire Touch Controller 3 6 Wolfson Microelectronics WM8731 12 Codec 3 7 GPIO LED s and Switches 3 8 I2C LED s and Switches 3 9 3 5 QVGA TET ECD With 5554555455855044 na asyan aaa duae a ahan Siaa aai CIS aiaia 4 MC9328MX21 On Chip 1 Va ve td V vu Dg ug a aed 4 1 Overview 4 2 MC9328MX21 Chip Selects sse 4 3 MC9328MX21 General Purpose I O Port Pin Assignments 4 4 MC9328MX21 Interrupt Pin Assignment
13. T Compact Flash Reset 1 reset card PA26 In CF RDY Compact Flash Ready Busy 1 ready PA27 Out CF VEN Compact Flash Voltage Enable 1 on PA28 Out LCD_HSYNC LCD Horizontal Sync PAGE 10 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Port A Bit DIR Usage Alternate Functions Notes PA29 Out LCD_VSYNC LCD Vertical Sync PA30 Out LCD CONT LCD Auxiliary Voltages Enable 1 on PA31 Out LCD DOE LCD Output Enable Table 3 MC9328MX21 GPIO Port A Pin Assignments GPIO Port B Bit DIR Usage Alternate Functions Notes PB4 Unavailable 5 Unavailable PB6 Unavailable PB7 Unavailable PB8 Unavailable PB9 Unavailable PB10 Unavailable PB11 Unavailable PB12 Unavailable PB13 Unavailable PB14 Unavailable PB15 Unavailable PB16 Unavailable PB17 Unavailable PB18 Unavailable PB19 Unavailable PB20 Unavailable PB21 Unavailable PB22 Out USBH MOD USB Host Transceiver Mode 1 Differential 0 Single Ended PB23 Out USBH PWR USB Host Power Enable unused PAGE 11 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Port B Bit DIR Usage Alternate Fu
14. X21 Development LiteKit are as follows 200Mhz Freescale MC9328MX21 CPU with 16K I Cache and 16K D Cache 64Mbyte 32 Bit Wide SDRAM 8Mbyte 16 Bit Wide FLASH Ultra Low Power CS8900a 10Mbit Ethernet Controller on CSB935FS 3 5 240x320 QVGA TFT LCD with Integrated Touch Screen on CSB935FS RS 232 Buffer for Debug Serial Port on CSB935FS USB Device Interface via USB Mini B connector on CSB935FS SD MMC Controller 4 Bit socket on CSB935FS Compact Flash Interface socket and buffers on CSB935FS Wolfson WM8731 Stereo Codec on CSB935FS with Line In Line Out and Microphone In ADS7846E 4 Wire Touch Controller on CSB935FS On Board Macraigor USBDemon Controller via USB Mini B on CSB535FS Standard 20 Pin JTAG Header on CSB935FS 2 2 REFERENCE DOCUMENTS Refer to the following documents for more detailed information regarding the major components of the i MX21 LiteKit In all cases you should contact the manufacturer for the latest documentation including errata regarding these components 1 Freescale MC9328MX21 i MX Integrated Portable System Processor Reference Manual MC9328MX21RM D Rev 1 1 11 2004 2 3V Intel StrataFLASH Memory Datasheet Order 290667 006 3 Cirrus Logic CS8900a Product Data Sheet Order Number DS271PP3 4 Wolfson Microelectronics WM8731 WM8731L Portable Internet Audio Codec with Headphone Driver and Programmable Sample Rates Product Data Sheet April 2004 Rev 3 4
15. d be limited to 5V to 15V Although the input can be unregulated it must be DC 4 The USBDemon circuitry uses a low drop out LDO regulator to power from the input voltage The current draw is 50ma At the maximum voltage 15V the LDO dissipates 500mw which is it s maximum 5 3 MACRAIGOR USBDEMON On board the CPU Module is the Macraigor USBDemon JTAG interface A USB Mini B type connector is used to interface the USBDemon to the Host computer Refer to the USBDemon Users Manual for detailed information on using the USBDemon JTAG interface Note that the 21 LiteKit contains a standard 20 pin JTAG header on the breakout board as well This may be used instead of the USBDemon interface In that case DO NOT CONNECT the USBDemon cable and an external JTAG controller to the 20 Pin header simultaneously PAGE 19 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 6 CSB535FS SOFTWARE 6 1 OVERVIEW Due to the various resources contained on the CSB535FS and CSB925 both on and off the MC9328MX21 it is necessary to initialize a large number of MC9328MX21 registers and external devices before correct operation can begin These values and their proper sequencing are beyond the scope of this document The Micromonitor source code should be referred to as the best guide PAGE 20 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 7 CSB535FS CPU MODULE CONNECTORS LED S AND
16. default and only supported setting by the boot monitor is GOMhz 3 4 CIRRUS LOGIC CS8900A ETHERNET CONTROLLER The i MX21 LiteKit uses the CS8900a to provide a 10Mbit Ethernet Interface This device is mapped to CPU Chip Select 1 In addition the interrupt output of the CS8900a is connected to CPU GPIO PE2 PAGE 6 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 CS8900a Interface Notes 1 The CS8900a is connected to CS2 as a 16 bit wide device with 10 wait states minimum and DTACK enabled 2 is connected to the CS8900a Interrupt output 0 IRQO CS8900a Interrupt is a low true level output 3 5 ADS7846E 4 WIRE TOUCH CONTROLLER The ADS7846E provides the i MX21 LiteKit with a 4 wire Touch Screen interface The CPU communicates with the ADS7846E via the standard SPI bus ADS7846E Interface Notes 1 ADS7846E is connected the MC9328MX21 using the built in SPI port 2 PD29 550 is used as SPI Chip Select 3 The ADS7846E interrupt output is connected to GPIO PE1 This interrupt output is a low true level output 4 Software is responsible for assigning the associated GPIO signals to SPI use They are PD28 to PD31 3 6 WOLFSON MICROELECTRONICS WMS 731 125 CODEC The Wolfson WM8731 provides the i MX21 LiteKit with a 20 Bit Audio Codec It supports Stereo Line in Stereo Line out which can also drive a headphone and Microphone in WM8731 Interface Notes
17. e four expansion connectors The signal name shown is the MC9328MX21 signal name unless otherwise indicated Expansion Connector P1 Pin Signal Pin Signal 1 Ground 2 Ground 3 Ground 4 Ground 5 Ground 6 Ground 7 Ground 8 Ground 9 USB Device D 10 USB Host D 11 USB Device D 12 USB Host D PAGE 22 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 Expansion Connector 1 Pin Signal Pin Signal 13 Ground 14 Ground 15 Ground 16 I2C_SCL 17 SPI DIN 18 SSI2 TXD 19 SD VEN 20 2 SDA 21 22 Ground 23 Ground 24 5511 25 5512 26 Ground 27 Ground 28 SSI2 FS 29 5511 30 SD_CD 31 SSI1_TXD 32 LCD_DOE 33 SSI1_FS 34 LCD_CONT 35 Ground 36 LCD_HSYNC 37 SPI_CLK 38 CF_RDY 39 Ground 40 CF_CD 41 UART1_RXD 42 LCD_R4 43 USBH_PWR 44 LCD R1 45 05 46 LCD_R2 47 LCD_VSYNC 48 LCD GO 49 LCD G5 50 LCD G4 51 LCD G1 52 LCD G2 53 LCD R3 54 LCD B2 55 CF_RST 56 LCD_B4 57 LCD_R5 58 LCD_B3 59 CF VEN 60 LCD B1 61 Ground 62 LCD G3 63 LCD PCLK 64 LCD B5 65 Ground 66 CPU ADDRESS 20 67 CPU ADDRESS 19 68 CPU ADDRESS 18 PAGE 23 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 Expansion Connector 1 Pin Signal Pin Signal 69 CPU ADDRESS 17 70 CPU ADDRESS 16 71 CPU ADDRESS
18. f six months for reasonable development testing and use all as further described and defined below This warranty runs solely to the individual or entity purchasing the Product and is not transferable or assignable in any respect This warranty is valid only for so long as the product is used intact as shipped from Cogent Any attempt or effort to alter the Product including but not limited to any attempt to solder desolder unplug replace add or affix any part or component of or onto the Product other than components specifically intended for the user to plug and unplug into appropriate sockets and or connectors to facilitate user programming and development all as specifically described and authorized in the Cogent Customer Product Users Manual shall void this warranty in all respects Coverage under this warranty requires that the Product be used and stored at all times in conditions with proper electrostatic protection necessary and appropriate for a complex electronic device These conditions include proper temperature humidity radiation atmosphere and voltage standard commercial environment OC to 70C lt 60 RH Any Product that has been modified without the express prior written consent of Cogent is not covered by this warranty Cogent Single Board and Cogent Modular Architecture test and bus connectors are for use with Cogent adapters only The use or connection of any test or bus connector adapter or component with any device other t
19. ff GPIO controls the auxiliary voltages 12V and 6 5 if any Again a one will enable them while 0 will turn them off The control for the auxiliary voltages 1 separate from the main voltages due the power sequencing requirement of the LCD panel Again refer to the Micromonitor source code for an example of this PAGE 18 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 5 POWER AND JTAG 5 1 OVERVIEW The i MX21 LiteKit has a high efficiency 3 3V switching regulator located on the CPU Module CSB5365FS Additionally the module can be powered in stand alone mode via the USBDemon connector on the CPU Module 5 2 3 3V SWITCHING REGULATOR On board the CSB535FS is a high efficiency 90 high power switching regulator It is designed to accept a wide input voltage range of 5V to 15V It produces 4 5 Amps of current of which a minimum of 3 Amps is available to the CSB935FS breakout board 3 3V Regulator Notes 1 The optimal input voltage range for the regulator is 12V 2V which achieves an efficiency of 90 Otherwise the efficiency drops to approximately 80 2 When powered in stand alone mode from the USBDemon connector the regulator is provided with 5V 10 In this mode the maximum output current is limited by the input power of 2 4W x 80 3 3V 580ma 3 Power in stand alone or in LiteKit mode is provided via the 1 3mm power jack on the CPU Module Input voltage shoul
20. han a Cogent connector or adapter shall void this warranty and the warranty of all other components parts and modules connected to the rest of the system Cogent shall not be responsible for any damage to the Product as a result of a customer s use or application of circuitry not developed or approved by Cogent for use on or in connection with the Product This warranty does not cover defects caused by electrical or temperature fluctuations or from stress resulting from or caused by abuse misuse or misapplication of the Product Any evidence of tampering with the serial number on the Product shall immediately void this warranty This Product is not intended to be used on or embedded in or otherwise used in connection with any life sustaining or life saving product and this warranty is not applicable nor is Cogent liable in any respect if the Product is so used Notwithstanding anything to the contrary herein Cogent expressly disclaims any implied warranty of merchantability or implied warranty of fitness for a particular purpose in connection with the manufacture or use of the Product PAGE 4 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 2 OVERVIEW 2 1 INTRODUCTION The i MX21 LiteLiteKit CSB535FS CPU Module along with the companion CSB935FS Breakout Board was designed and developed by Cogent Computer Systems Inc as a highly integrated Freescale MC9328MX21 Development LiteKit The major features of the MC9328M
21. lar to that used on commercial PDA s This allows the user to develop graphical user interfaces for a wide variety of end applications Refer to the Micromonitor source code MC9328MX21_Icd c for detailed programming and setup examples Additionally the schematic will show the necessary interface to this display PAGE 8 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 4 MC9328MX21 ON CHIP I O DEVICES 4 1 OVERVIEW The MC9328MX21 has a number of on chip peripheral devices as well as a number of user defined control lines While it is beyond the scope of this document to provide detailed programming and interfacing information for the MC9328MX21 on chip peripherals the following section describes the assignments for these devices and control lines as implemented on the CSB535FS and on the CSB935FS breakout Note that unused peripherals or GPIO are not made available on the CSB535FS connectors They are simply unconnected 4 2 MC9328MX21 CHIP SELECTS As described in Section 3 1 the MC9328MX21 Chip Selects are used to enable the various peripheral devices on the i MX21 As a cross reference they are described again in the following table Chip Select Attached Device s Notes CS0 StrataFLASH Boot Device CS1 CS8900a Ethernet Controller CS2 Used as SDCSO SDRAM CS3 Not Available CS4 Not Available CS5 Compact Flash Via CPLD Table 2 9328
22. navailable PC20 Out SSI1_FS Receive Frame Sync to 125 Codec PC21 In SSI1 RXD Receive Audio Data from 125 Codec PC22 Out SSI1 TXD 5511 Transmit Data unused PC23 In SSI1 CLK Receive Data Clock from 125 Codec PC24 Out SSI2 FS Transmit Frame Sync to 125 Codec PC25 Out SSI2 RXD SSI2 Receive Data unused PC26 Out SSI2 TXD Transmit Audio Data to 125 Codec PC27 In SSI2 Transmit Data Clock from 125 Codec PC28 Unavailable PC29 Unavailable PC30 Unavailable PC31 Unavailable Table 5 MC9328MX21 GPIO Port C Pin Assignments GPIO Port D Bit DIR Usage Alternate Functions Notes PD17 I2C_SDA I2C Data PD18 I2C_SCL 2 Clock PD19 Unavailable PD20 Unavailable PD21 Unavailable PD22 Unavailable PD23 Unavailable PD24 Unavailable PD25 In SD CD SD MMC Detect 0 Card in PD26 In SD WP SD MMC Write Protect 0 Protected PAGE 13 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Port D Bit DIR Usage Alternate Functions Notes PD27 Out SD_VEN SD MMC Voltage Enable 1 on PD28 Out SPI_CS SPI Chip Select low true to ADS7846E PD29 Out SPI_CLK SPI Clock to ADS7846E PD30 In SPI_DIN SPI Data In from ADS7846E PD31 Out SPI_DOUT SPI Data Out to ADS7846E Table 6 MC9328MX21 GPIO Port D Pin
23. nctions Notes PB24 In USBH OC USB Host Over Current unused PB25 Out USBH_SUSP Suspend to USB Host Transceiver PB26 Out USBH_SPD USB Host Speed 1 12Mbit 0 1Mbit PB27 Out USBH OE Transmit Output Enable to USB Host Transceiver PB28 Out USBH VMO Transmit Minus to USB Host Transceiver PB29 Out USBH VPO Transmit Plus to USB Host Transceiver PB30 Out USBH VM Receive Minus from USB Host Transceiver PB31 Out USBH VP Receive Plus from USB Host Transceiver Table 4 MC9328MX21 GPIO Port B Pin Assignments GPIO Port C Bit DIR Usage Alternate Functions Notes PC5 Out USBD USB Device Transceiver Enable PC6 Out USBD MOD USB Device Transceiver Mode 1 Differential 0 Single Ended PC7 Out USBD SUSP Suspend to USB Device Transceiver PC8 Out USBD SPD USB Device Speed 1 12Mbit 0 1Mbit PC9 Out USBD OE Transmit Output Enable to USB Device Transceiver PC10 Out USBD VMO Transmit Minus to USB Device Transceiver PC11 Out USBD VPO Transmit Plus to USB Device Transceiver PC12 Out USBD VM Receive Minus from USB Device Transceiver PC13 Out USBD VP Receive Plus from USB Device Transceiver PC14 Out USR LEDO User LED 0 0 on PC15 Out USR LED1 User LED 1 0 on PC16 Unavailable PC17 Unavailable PAGE 12 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Port C Bit DIR Usage Alternate Functions Notes PC18 Unavailable PC19 U
24. on of the Connectors LED s and Switches on the CSB935FS topside Reset Switch pi ng Power On LED e m a 9 e i 2 ee 5 Connector 14 3 o jte 8 Audio Line lt Headphone 5 ee ee wo 1 88 Audio e m S 8 uL 15 JN 82 M E 88 Audio Line In 5 SE 2 Ge a v j dh iL c Ethernet o Activity LED 10Mbit Ethernet n Debug Serial FN e e 1 USB USB d Device Host Ethernet not used Link LED PAGE 27 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 8 3 CSB935FS CONNECTORS LED S AND SWITCHES BACKSIDE The following diagram shows the location of the Connectors LED s and Switches on the CSB935FS backside 3 5 240x320 LCD e m 12C LED 0 m I2C LED 1 m I2C LED 2 m 12C LED 3 2 Switch Switch Switch Switch i I LCD Connect r 2 1 j 2 2 12C 3 CIEGOS COD ON 81 e 285 FREESCALE SEMICONDUCTOR 008011 COMPUTER SYSTEMS NC PAG
25. orts a wide variety of commands that allow the user to modify and or read memory download programs from Ethernet Serial or on board Flash File System TFS and many others Refer to the Micromonitor Users Manual for a complete listing Note that not all commands are available on all targets Type the following command assuming you are connected using a standard terminal program at the Micromonitor command prompt to get a list of the commands currently enabled on your target umon gt help The terminal window will then display the commands installed on your target Additional help for each command can be displayed by typing help xxx where xxx is the specific command you are seeking help on You can also type the following to get information regarding the build date memory usage default application load address APPRAMBASE and other useful information regarding Micromonitor as installed on your i MX21 LiteKit uMon gt mstat 9 5 GETTING MORE INFORMATION ABOUT MICROMONITOR Micromonitor reference information and a more advanced Micromonitor training guide are available from Microcross Inc www microcross com PAGE 30 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 10 1 21 LITEKIT SCHEMATICS PAGE 31
26. s 4 5 MC9328MX21 Debug UART 4 6 MC9328MX21 SPI Controller tret ehe Sana avers MEE HE ERE s 4 7 MC9328MX21 I2C Interface nuu a iet tt a aa dena a ee Ty eda rug ea dg Va y veo za c 4 8 MC9328MX21 4 Bit SD MMC Controller 4 9 MC9328MX21 Compact Flash 4 10 MC9328MX21 USB Device Port nnne ee etr 4 441 TET LCD Conttoller E 5 Power and JTAG 5 1 5 2 3 3V Switching Regulator 5 3 Macraigor USBDemon 6 CSB535FS Software 7 CSB535FS CPU Module Connectors LED s and Switches ennt entren TA OVOIVIQW fice Der da ees cet tege ee er oed aa vdd 7 2 CSB535FS Expansion Connector 7 3 CSB535FS Expansion Connectors 7 4 CSB535FS Expansion Connector Pinouts 7 5 CSB535FS Topside Connectors LED s and Switches 2 8 CSB935FS Breakout Board Connectors LED s and Switches GEO NI E a 8 2 CSB935FS Connectors LED s and Switches Topside 8 3 CSB935FS Connectors LED s and Switches Backside T ia E a ETa Ein aaa Eng ia a mui to LOM 5 E EOS 9 2 Micromonitor Software Memory 9 3 Connecting to Micromonitor
27. tive 1 USB CD USB Cable Detect 1 USB Device Cable In and powered Table 9 CSB535FS CSB925 Interrupt Pin Assignments PAGE 16 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 4 5 MC9328MX21 DEBUG UART MC9328MX21 UART 1 is used as the debug UART on the i MX21 This UART is buffered with an RS 232 Transceiver TXD and RXD only and brought to the DB 9 Software must assign the appropriate GPIO pins PE12 TXD PE13 RXD to the UART 1 function Refer to the MC9328MX21 Users Manual for more information about the MC9328MX21 UARTS 4 6 MC9328MX21 SPI CONTROLLER The MC9328MX21 provides a high speed Serial Peripheral Interface SPI controller This port is used to interface with the ADS7846E Touch Controller Refer to the MC9328MX21 Users Manual for detailed programming information 4 7 MC9328M X21 I2C INTERFACE The MC9328MX21 has a full speed 100Khz 400Khz master slave I2C Serial Controller The controller is fully compatible with the industry standard 2 and SMBus Interfaces For simplicity the I2C pins may also be programmed as GPIO PD18 SDA PD17 SCL This allows simple Bit Banging control of I2C peripherals without setting up the MC9328MX21 I2C Controller 4 8 MC9328MX21 4 BIT SD MMC CONTROLLER The MC9328MX21 has a high speed 4 Bit Secure Digital SD MMC controller This controller can interface with MMC SD and SDIO Cards with minimal host intervention
28. vailable PF10 Unavailable PRT Unavailable PF12 Unavailable PF13 Unavailable PF14 Unavailable PF15 Out CLK OUT Bus Clock Out 60Mhz PF16 Unavailable PF17 Unavailable PF18 Unavailable PAGE 15 Cogent i MX21 LiteKit Hardware Reference Manual Preliminary 1 17 2006 GPIO Port F Bit DIR Usage Alternate Functions Notes PF19 Unavailable PF20 Unavailable PF21 In DTACK Data Acknowledge from CS8900a and Compact Flash 0 data ready PF22 Out CS4 Chip Select 5 Compact Flash via CPLD PF23 Unavailable Table 8 MC9328MX21 GPIO Port Pin Assignments 4 4 MC9328MX21 INTERRUPT PIN ASSIGNMENTS The MC9328MX21 has a number of GPIO s that are or can be used as interrupt inputs to the Interrupt Controller The following table describes the GPIO that are used as interrupts on the i MX21 LiteKit User software is required to enable the interrupt function for any signal GPIO Bit Source Notes PA22 USR SWO User Pushbutton Switch 0 PA23 USR SWI User Pushbutton Switch 1 PA24 CF CD CF Card Detect 0 card in PA26 CF RDY CF Ready Busy Polarity depends upon the mode the CF card is in PD25 SD CD SD MMC Card Detect 0 7 card in PEO 2C INT PCA9554 GPIO Expander Interrupt 0 active PE1 PIRQ ADS7846E Touch Controller Interrupt 0 active PE2 E INT CS8900a Interrupt 0 ac
Download Pdf Manuals
Related Search