EP80579 Datasheet, PDF (26/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Contents
25.0 USB (1.1) Controller: Bus 0, Device 29, Function 0................................................. 941
25.1 USB (1.1) Controller Configuration Register Details .............................................. 941
25.1.1 Register Details ...................................................................................... 942
25.1.1.1
25.1.1.2
25.1.1.3
25.1.1.4
25.1.1.5
25.1.1.6
25.1.1.7
25.1.1.8
25.1.1.9
25.1.1.10
25.1.1.11
25.1.1.12
25.1.1.13
25.1.1.14
25.1.1.15
25.1.1.16
25.1.1.17
25.1.1.18
ID - Identifiers Register ................................................................... 942
PCICMD - Command Register............................................................ 942
PCISTS - Device Status Register........................................................ 943
RID - Revision ID Register ................................................................ 944
SUBC - Sub Class Code Register........................................................ 945
BCC - Base Class Code Register ........................................................ 945
MLT - Master Latency Timer Register ................................................. 945
HDR - Header Type Register ............................................................. 946
USBIOBAR - Base Address Register ................................................... 946
USBx_SVID - USB Subsystem Vendor ID Register................................ 947
USBx_SID - USB Subsystem ID Register ............................................ 947
INTL - Interrupt Line Register ........................................................... 948
INTP - Interrupt Pin Register............................................................. 948
SBRN - Serial Bus Release Number Register........................................ 948
USBLKMCR - USB Legacy Keyboard/Mouse Control Register .................. 949
USBREN - USB Resume Enable Register ............................................. 951
USBCWP - USB Core Well Policy Register ............................................ 951
MANID - Manufacturer ID Register..................................................... 952
25.2 USB (1.1) Controller I/O-Mapped Register Details ................................................ 953
25.2.1 Register Details ...................................................................................... 953
25.2.1.1
25.2.1.2
25.2.1.3
25.2.1.4
25.2.1.5
25.2.1.6
25.2.1.7
USBCMD: USB Command Register ..................................................... 953
USBSTS: USB Status Register ........................................................... 957
USBINTR: USB Interrupt Enable Register............................................ 958
FRNUM: Frame Number Register ....................................................... 959
FRBASEADD: Frame List Base Address Register................................... 960
SOFMOD: Start of Frame Modify Register ........................................... 960
PSCR - Port Status and Control Register ............................................. 962
25.3 Data Transfers to/from Main Memory ................................................................. 964
25.4 Data Structures in Main Memory ........................................................................ 964
25.5 Data Transfers To/From Main Memory ................................................................ 964
25.5.1 Executing the Schedule ........................................................................... 965
25.5.2 Processing Transfer Descriptors ................................................................ 965
25.5.3 Command Register, Status Register, and TD Status Bit Interaction................ 966
25.5.4 Transfer Queuing.................................................................................... 966
25.6 USB Buffer Management ................................................................................... 969
25.7 Data Encoding and Bit Stuffing .......................................................................... 970
25.8 Bus Protocol.................................................................................................... 970
25.8.1 Bit Ordering ........................................................................................... 970
25.8.2 SYNC Field............................................................................................. 970
25.8.3 Packet Field Formats ............................................................................... 970
25.8.3.1 Packet Identifier Field ...................................................................... 971
25.8.4 Address Fields ........................................................................................ 971
25.8.4.1 Address Field .................................................................................. 971
25.8.4.2 Endpoint Field................................................................................. 971
25.8.5 Frame Number Field................................................................................ 971
25.8.6 Data Field.............................................................................................. 971
25.8.7 Cyclic Redundancy Check (CRC) ............................................................... 972
25.9 Packet Formats ............................................................................................... 972
25.10 USB Interrupts ................................................................................................ 972
25.10.1 Overview............................................................................................... 972
25.10.2 Transaction-Based Interrupts ................................................................... 972
25.10.2.1 CRC Error/Time-out ......................................................................... 972
25.10.2.2 Interrupt on Completion ................................................................... 973
25.10.2.3 Short Packet Detect......................................................................... 973
Intel^® EP80579 Integrated Processor Product Line Datasheet
26
August 2009
Order Number: 320066-003US