AMD-766AC AMD [Advanced Micro Devices], AMD-766AC Datasheet - Page 56

• Manufacturer Part Number: AMD-766AC
• Description: Peripheral Bus Controller
• Manufacturer: AMD [Advanced Micro Devices]

23167B – March 2001
C4A08: USB Revision ID, Programming Interface, Sub Class and Base Registers
Configuration space; function 4; offset: 0B-08h. Default: 0C03 1007h. Read only.
31:8
CLASSCODE
REVISION ID. USB controller silicon revision.
CLASSCODE. USB controller class code.
C4A0C: USB Controller BIST, Header, Latency, and Cacheline Size Register
Configuration space; function 4; offset: 0F-0Ch. Default: 0000 0800h.
31:24
BIST
CACHELINE SIZE. Read-write. 08h=32 Bytes; 00h=0 Bytes. No other values are allowed.
LATENCY, HEADER, BIST. Read only. These are fixed at their default values.
C4A10: USB Controller Base Address Register
Configuration space; function 4; offset: 13-10h. Default: 0000 0000h. Read-write.
31:12
BASE
BASE[31:12] Base Address. These bits specify a 4-KByte non-prefetchable memory space for the USB controller
registers.
C4A2C: USB Controller Subsystem ID and Subsystem Vendor ID Register
Configuration space; function 4; offset: 2F-2Ch. Default: 0000_0000h. Read only.
31:16
SSID
SSVENDORID and SSID. Subsystem vendor ID and subsystem ID registers. This register is write accessible
through C0A70.
C4A3C: USB Controller Interrupt Line, Interrupt Pin, Min Grant, Max Latency Register
Configuration space; function 4; offset: 3F-3Ch. Default: 5000 0400h.
31:24
MAX LATENCY
INTERRUPT LINE. Read-write. This field controls no hardware.
INTERRUPT PIN. Read only. The value 04h indicates that USB interrupts are routed through PIRQD#.
MIN GNT. Read only. These bits are fixed at their default values.
MAX LATENCY. Read only. These bits are fixed at their default values.
C4A44: USB Controller Interrupt Line, Interrupt Pin, Min Grant, Max Latency Register
Configuration space; function 4; offset: 45-44h. Default: 0000h. Read-write.
15:9
Reserved
DB16: Data Buffer Region 16. 1=The size of the region for the data buffer is 16 bytes. 0=The region is 32 bytes.
PIPDIS: SIE Pipelining Disable. 1=Transfer descriptors are disabled from being pipelined with USB bus activity.
23:16
HEADER
23:16
MIN GNT
Preliminary Information
8
PIPDIS
15:8
LATENCY
15:0
SSVENDORID
15:8
INTERRUPT PIN
7:1
Reserved
AMD-766
11:0
Reserved
TM
Peripheral Bus Controller Data Sheet
7:0
REVISION ID
7:0
CACHELINE SIZE
7:0
INTERRUPT LINE
0
DB16
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