17059 USB6
Contents
1. USB 3 0 Topology e USB 3 0 adds a PCle like data pipe and preserves USB 2 0 2 wire USB Cable MICROCHIP MASTERS 2013 interface USB Host Hub Vbus 0 usB 3 0 5840 TX RX RX GND Vbus use 20 0 Port D GND GND Vbus D D USB3 0 qx Deviee TX RX RX USB 2 0 D D GND USB 3 0 Cable MICROCHIP MASTERS 2013 e Contains 3 groups of wires UTP STP and power Limited to 3 meters in length Typical wire gauge is 30 26 AWG USB2 UTP Signal Pair D D Filler Optional SP Spat Pat Braid Power USB 3 0 Connectors Std A MicROCHIP MASTERS 2013 Std Aconnector maintains compatibility with USB 2 0 e Added 2 tier contact pins for USB SuperSpeed Blue color receptacles to uniquely identify USB 3 0 capable ports e USB 2 0 3 0 Receptacles mates with USB 2 0 3 0 plug Se J MICROCH onnectors LE Powered B Standard B For large stationary peripherals such as LCD monitor printers hard drives etc Visually different from USB 2 0 std B but the receptacle accepts a USB 2 0 std B plug Powered B Developed for device powered applications Std B plus additional Power Added deca and ground pins Powered B receptacle accepts USB 3 0 Powered B M plug USB 3 0 Std B plug and USB 2 0 std B plug2. ale E 17059 USB6 USB Hub Training Airport HUB MASTERS 2013 e e MICROCHIP Agenda e USB HUB Introduction and Definitions e USB Speeds and Hub Transaction Translators e Different power consumptions allowed on USB HUB e Technical design consideration and debugging e USB 3 0 HUB e Microchip USB Hub offering USB HUB Introduction and ICROCHIP PT MASTER 2023 Definitions A USB hub is a device the expands a single USB port into several so that there are more ports available to connect devices to a host system MICROCHIP De ns MASTERS 2013 Upstream Port The port a USB Hub that faces the USB Host Downstream Ports The Ports on the USB Hub that faces the USB devices Self Powered Powered by a power supply that connects directly to the USB device or Hub Bus Powered Powered by the USB Connector VBUS pin Configured Unconfigured A USB device is Unconfigured at first connection until the Host has assigned an address and enabled it After this point the device is considered to be Configured MICROCHIP Defi n ons Non Removable Ports Ports which contain non removable devices permanently attached to the HUB Windows testing will fail if non removable ports are not declared Non removable Devices must be attached to the lowest numbered ports Strapping options SMBus I C or external EEPROM configurations allow all ports to be non removabl
3. Mec USB 3 0 Hub Architecture MASTERS 2013 Two separate logical controllers USB 2 0 hub SuperSpeed hub Nen SuperSpeed High Fun Speed Space Low ds vse Extends 7 e SuperSpeed hub Nota simple repeater e Store and forward headers and data Works like PCle switch Connects to host as both USB 2 and SuperSpeed Device e Downstream devices Connect at either USB 2 0 speed or SuperSpeed Non Supe peed iit or 7 Composite Cab 8830 Hub Nor Supers Vid USB 30 Perighera Device The technical training conference for embedded control engineers Microchip USB HUB offering USB 2 0 Hub Family MICROCHIP MASTERS 2013 2 3 4 7 SMSC Advantage Standard Hub 0862422 USB25138 05825148 0582517 High performance 96 QFN 36 OFN 64 FN cost effective market proven USB gon USB2 0 port pansion scone a expansion solutions MultiTRAK Multiple Transaction Translators MTT USB2 USB2532 05825138 USB2534 Architecture Controller seam Low power small footprint Hub EH Hoty coniguabl for OEM specific Automotive USB82514 oeu amo sy eating Ne
4. X of ports Y of ports 48P QFN USB38YX USB upstream X of ports Y of HSIC ports WLCSP USB36YX upstream X of ports Y of HSIC ports WLCSP USB253x USB upstream x number of downstream USB ports 38P QFN USB3 0 HUB options MASTERS 20 USB5537B Seven Port Hybrid Hub e USB5534B Four Port Hub e USB5533B Three Port Hub USB5532B Two Port Hub Industry s Most Complete Hub Product Line Mcrocue USB3 0 HUB feature comparison MASTERS 2013 Features usesssom usesssse usesssm usesssze Fol Downstream Ports z Package Porimap PortSwap TruSpeed PHYBoost Vendor Specific Messaging VSM Custom configuration with SPI SMB Sid Commercial Temp 010 70C Industrial Temp 4010 850 amp Apple Charging vac Power 3 E Designed for2 Layer PCBs mcrce Where to Find More Information MASTERS 2013 e USB2 0 and USB3 0 Specifications http www usb org developers docs e Chapter 11 for USB HUB in USB2 0 spec e USB Complete book by Jan Axelson e USB Made Simple a series of articles on USB http www usbmadesimple co uk Microchip USB HUBs Data Sheets and Application Notes http www smsc com Products
5. USB USB Hubs MicROCHIP Summary MASTERS 2013 USB2 0 and USB3 0 have become most ubiquitous interfaces in commercial and embedded applications USB HUB is one of the most important elements in the USB topology Power consumption is very critical when designing with HUBs Signals integrity and protocol compliance are key factors especially to obtain the USB Logos Microchip has the largest and most features rich family of USB HUBs a Demo board diagram MASTERS 2013 Connected Function Examples E 18 MICROCHIP MASTERS 2013 USB46XX Demo LEGAL NOTICE
6. 3035 11 755 10ms Toms Start of Device Start of End of Reset reverts Device Chirp Device Chirp toFS Microchip USB Addressing USB Devices are assigned addresses from 0 to 127 decimal e All Devices including hubs respond at address 0 following Power On or Reset e After Reset all Hub Downstream Ports are Disabled e Host only time so 1 MASTERs 2013 enables one Hub port at a at only one device can respond to address 0 e Host assigns a Unique address to each Device Addressing Devices MICROCHIP Attached to Hub e Host begins by assigning Hub to Address e Host Enables Port Power on Port 1 Ifa device is attached it is assigned an address N 1 for example e This procedure is repeated for all downstream ports USB HUB Endpoints MASTERS 2013 By spec the USB HUB utilizes two type of USB transfers endpoints e Control Endpoint for enumeration MicrocHie USB HUB Endpoints MASTERS 2013 Interrupt Endpoint used to control the status of the HUB through the HUB and port Status Change bitmap USB transactions MASTERS 2013 USB 2 0 is designed to allow data communication at 480Mbps while maintaining compatibility to USB1 1 12 Mbps AN USB2 0 Split Transactions MicROCHIP MASTERS 2013 2 types of s
7. 80 Mbps Devices e Signal High Speed operation via the speed negotiation Chirp detection USB3 0 e Super Speed 5 Gbps Devices Use a complete different data path TX TX and RX RX to perform USB3 0 communication USB Speeds MICROCH MASTERS 2013 USB1 1 USB 2 0 USB 3 0 12Mbps 480 Mbps 5 Gbps 4 wires 8 wires 9 Up to 5 meter cable Up to 3 meter cable Standard A B AB connector di Backward compatible with standard A B new micro B AB connector TypeA ero BAB 89 A S N legotiation for High Speed Chirp and speed detection 1 Device starts by attaching as Full Sample Speed 1 5K Pullup on D 2 HOST send USB reset and the Device then issues Chirp driving HS current 18 mA into the upstream 45 Ohm Termination resulting in 800mV on D 3 High Speed Host Downstream USB Hub Port response is Chirp JK sequence Alternating HS current driven into D and D Full Speed Host Downstream Hub will Ignore the Device s Chirp 4 Device applies High Speed termination AES EI res Signal Amplitude drops to 400 mV rm USB 2 0 speed detection MASTERS 2013 Start of Endof Endof Hub Chirp Hub Chirp Reset gt 10 210085 1 ij
8. at SOFs starts less than 3 mS after end of USB Reset e Collect CATC trace Check descriptor data returned configuration Check for errors timeouts or CRC USB 2 0 CATC bus analyzer application MICROCHIP CATC bus analyzer MASTERs 2013 MicROCHIP CATC bus analyzer connection MASTERS 2013 USB Chief PC for Analysis USB Host External Events USB Chief PC Connection USB 2 0 Hub Upstream port no LeCroy EURO Screenshots LeCroy Analyzer Screenshots cont MASTERS 2013 necare ee UAsABauA HE 5 57 E LeCroy Analyzer Screenshots cont MASTERS 2013 Drum EE technical training conference for embedded contral engineers m a USB3 0 HUB MICROCHIP MASTERS 2013 Backward coi USB 2 0 to USB 3 0 mpati lity with USB 2 0 enables seamless transition e Maintain software and device driver infrastructure Connector compatibility preserves ease of use expectation for end user End User Host Pc TV STB Game Console etc Perspective USB 2 0 USB 3 0 Device USB 2 0 Hi Speed 480Mbps Hi Speed 480Mbps Camera Hard All Combinations Work rive a 28 Hi Speed 480Mbps SuperSpeed 5Gbps
9. e Strapping any ports as non removable also causes the hub to declare itself as part of a compound device MICROCHIP Defin ons MASTERS 2013 e USB Compound device e Allows a Mix of USB HUB and USB Functions Use Single Connection to the Host e Can add User accessible ports e USB Suspend states e Enabled hub downstream port will enter suspend state when e Hub receives port suspend command Selective Suspend e Hub enters global suspend state 3ms of no BUS activities suspensea be ons MICROCHIP MASTERS 2013 USB Resume When the host wants to wake the device up after a suspend it does so by reversing the polarity of the signal on the data lines for at least 20ms Itis also possible for a device with its remote wakeup feature set to initiate a resume itself 15ms Kstate e Once resumed Port returns to enabled state MICROCHIP U MASTERS 2013 SB Speeds USB1 1 e Low Speed 1 5 Mbps Devices e Signal Low Speed operation by enabling 1 5K pull up Resistor on D e Full Speed 12 Mbps Devices e Signal Full Speed operation by enabling 1 5K pull up Resistor on D achment and Speed Detection MicROCHIP MASTERS 2013 rl Full Speed Device Detection rl Low Speed Device Detection 6 USB Speeds USB2 0 e High Speed 4
10. e port must be between 5 25 and 4 75V MASTERS 2013 gt povar sorty Dx gas Dx Roges Lx Ryze 24757 OVER CURRENT PROTECTION WIRE HARNESS ROUTE AWW AW Rui 273 ON reponer Y Roo SUPPLY Restored 1158 voltage regularis used USB 5v VBUS voltage design for the Downstream port STEP Make traces as wide and shorts possible or extend plane under OVER CURRENT Connect to SV and USB power pins PROTECTION DEVICE SV standby PC Power Supply B B USB POWER PLANE sm BYPASS CAPACITOR PADS place STEP CONNECT F iiie nue GROUND PLANE USB EMI ESD design guide consideration Typical common choke and suppression component MASTERS 2013 e All Common Mode Chokes and ESD Diodes must be specified for a differential impedance of 900 for HS USB applications The choke shouldbe placed as close as posible to the USB connector signal pins PuseGuard Components Common mode choke e Always include pad options for resistor bypass of the CMC and de pop the diodes when possible MicROCHIP USB Tech Tips MASTERS 2013 HS and SS USB have specific routing requirements that must be followed See AN 26 2 for more detail USB Hubs can be configured via straps EEPROM and 5 Leave a population opt
11. ion for the default strapping USB Oscillator and some internal regulators are disabled during USB Suspend to save power If a customer tells you the oscillator is stopping try connecting to a host Drivers USB Hubs and Flash Media Readers use the default driver from the OS No need to download drivers Test Equipment Low cost USB analyzers available from Teledyne LeCroy CATC and TotalPhase Encourage your customer to invest in one ESD Protection if improperly specified can render USB device inoperable If present remove bypass and re test RBIAS value must be exactly as specified in the data sheet Changing this value affects output voltages and input thresholds Mcrocup USB Debug When enumeration fails PASTERS 2013 without USB traffic e Does D go to 3V when attaching to host e Check power VDD18 should be 1 8V VDD18PLL should be OV suspend state or 1 8V if USB traffic e Check hardware reset Check clock measure on XTAL2 e Check configuration strapping EEPROM SMBus e Check VBUS_DET pin USB devices use this pin to signal that the cable to the host is attached S USB Debug When enumeration fails MICROCHIP 4 MASTERS 2013 with USB traffic e Full speed Check that USB Reset is generated e Check that SOFs starts less than 3 mS after end of USB Reset e High speed Check that USB Reset is generated Check that chirping occurred e Check th
12. nd disable sequence For any port that is disabled USB251x automatically reorder the remaining ports to match the USB host controller s port numbering scheme Logical Connection Physical Connection Disabled Connected P3 Disabled Disabled P4 Disabled Connected USB port virtualization NI MicROCHIP PortSwap MASTERs 2013 PortSwap adds per port programmability to USB differential pair pin location and allows direct alignment of USB signals D D to connectors thus avoiding uneven trance length or crossing of the USB differential signals on the PCB m fe o PHYBoost MicROCHIP MASTERS 2013 PHYBoost enables four level programmable USB signal drive strengths 0 496 8 12 in downstream port transceivers PHYBoost attempts to restore USB signal integrity that has been compromised by system level variables such as poor PCB layout analog switches long cables etc 12 Boost Eye diagram compromised system environment USB 2 0 Hub HW design consideration MASTERS 2013 EEE Power Decoupling caps SMSC USB Hubs contain 2 integrated LDO Regulators e External Low ESR lt 200 Caps Required on S Add the Voltage drop budgeting Self Power Hub MICROCHIP The voltage seen af th
13. plit transactions gt gt Split transactions the means by which the hub handles Low or Full speed traffic on the downstream ports without degrading the upstream High Speed bus performance The transaction is Split into phases a Start Split and a Complete Split Transaction Translators MASTERs 2013 A Transaction Translator TT acts as a buffer between a High Speed Host and a Full Speed or Low Speed Device e Upstream the Host Reads and Writes to the TT at High Speed Downstream the TT transfers Data to the Device at Full or Low Speed e USB Hubs contain a minimum of One TT Multi TT Hubs contain one TT per Downstream Port AN MultiTRAK eliminates FS traffic congestion MICROCH MASTERS 2013 SMSC USB2 0 Hubs Other USB 2 0 Hubs With MultiTRAK MultiTRAK One TT per Port One TT per Hub Dedicated 12 Mbps pipe Asingle 12 Mbps pipe shared for every downstream FS LS among 4 downstream FS LS device devices MultiTRAK provides highest FS data throughput MICROCHIP MASTERs 2013 hubs guarantee maximum FS Bulk Read Write throughput for EVERY downstream port 1 2 ports 4 5 ports 6 ports 7 ports 2ports ports 4 ports 5 ports 6 ports 7
14. ports Ahr AML Other USB2 0 hubs MultiTRAK MultiTRAK is 2X faster than single TT with 4 FS bulk traffic MultiTRAK is faster than single TT with 7 FS bulk traffic MEL handy Se Meee MultiTRAK provides highest FS data throughput MASTERs 2013 MTT hubs guarantee maximum FS Bulk Read Write throughput for EVERY downstream port Up to 200 Faster than Average USB Bulk Data Throughput STT hubs io is Number of Active FullSpeed Downstream Ports Single TT hub USS Read g Singe TT Hub USB Buk 8058 Read with MutiTRAK 008 Bulk with MutiTRAK wcce Power Considerations e Bus Powered HUB e Unconfigured Total 100 mA e Configured 500 mA HUB Current 100mA of DP Pownstream Ports can not support 500 m e 2 USB Bus Powered HUB in cascade are not allowed by spec e Self Powered Total lt 100 mA re USB Power Management Policy Self powered hub Draws no power from bus stream Veus Downstream e Upstream Noruremovable e T Function Local power supply provides 500 power for the hub and all gt 500 mA downstream ports Qoymstream Veus Curent Limit 500 mA ME 500 mA Figure 7 Compound Self
15. powered Hub USB Power Management Policy MICROCH MASTERS 2013 Bus powered hub Downstream Ports p Vbus provides power for the hub and all downstream ports DELI 100 mA each max Downstream Figure 7 42 Compound Bus powered Hub Microchip The Changing USB Universe MASTERS 2013 The USB Eco system continues to increase in capability s in both Speed and Power Faster speeds 1 5Mbs 12Mbs 480Mbs 566 Higher power 500ma 900ma 1500ma 100w Susi Power Delivery is coming soon 2013 e Battery Charging standards evolve constantly with both vendor specific and standards based solutions e USB IF specifications BC1 1 BC1 2 2 Apple L M H RIM Blackberry defacto standards e China and Europe have adopted countrywide standards USB Battery charging 17058 USBS class available at the MCHP Master USB IF compliance tests continually evolve e Mobile devices are changing the landscape USB VBUS Progression MICROCHIP MASTERS 2013 20 0 1 USB Power Delivery Revolutionizes the VBUS Pin 5 ow Any voltage from 0 to 20V g Any current from 0 to 5 E 4 5 15A VBUS Current Range E D MI ing conference for control engineers Important features to consider when choosing USB HUB MICROCHIP Po rtMap MASTERS 2013 PortMap provides flexible port mapping a
16. w extended See USB251xB Us eatery USB251xB USB2 Controller HUB MASTERS 2013 What is a USB Controller Hub USB HUB Function 2 3 4 port With Embedded Controller GPIO FO SMbus 2 Can execute from SPI flash e point Embedded Controller Functions HUB configuration during startup Quad Page Configuration GPIO Bridging for HOST Battery Charging Profiles Executes custom features Features Enabled by EC Enables HUB GPIO to be directly controlled by HOST system Allows independent HUB functions while HOST is powered off Allows customer specific functionality UCH2 USB2 Controller HUB qose New USB Hub Controller SKUs MASTERS 2013 0882632 1080 USB2533 1080AEN 0882634 1080 usa USB4624 1080HN HSIC USB 2 x2 USB4604 1080HN HSIC USB 0583813 1080 0583613 1080 USB 2 UsB x3 USB x4 USB 4 USBx2 HSIC x1 USB x2 HSIC x1 36 QFN QFN 36 QFN 48 OFN 48 QFN 30 WLCSP Hub Controller 2 Port Hub Controller Port Hub Controller 4 Port Hub Controller with USB amp HSIC Hub Controller with USB amp HSIC Mobile Hub Controller Mobile Low Power Hub Controller Naming structure USB46YX upstream
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