AB-2061G-33 Datasheet, PDF (14/32 Pages) List of Unclassifed Manufacturers – 33Mhz PCI to Local Bus Interface

PCI Configuration Registers
These are accessed by the local processor through an indirect method using
REGISTER_ADDRESS and REGISTER_DATAn. The PCI uses configuration
cycles to get at these.
PCI Local N a m e
Config. Indirect
Addr. Addr.
0 0(0,1) Vendor ID
Width
16
2 0(3,2) Device ID
16
4 1(0,1) Command
16
6 1(3,2) Status
16
8
2(0) Revision ID
8
9
2(1) Interface Register
8
A
2(2) Sub Class Code
8
B
2(3) Base Class Code
8
C
3(0) Cache Line Size
8
D
3(1) Latency Timer
8
E
3(2) Header Type
8
F
3(3) BIST
8
1 0 4(3-0) Base Address 0
32
1 4 5(3-0) Base Address 1
32
1 8 6(3-0) Base Address 2
32
1C 7(3-0) Base Address 3
32
2 0 8(3-0) Base Address 4
32
2 4 9(3-0) Base Address 5
32
2 8 A(3-0) Cardbus CIS Pointer 3 2
2C B(0,1) Subsystem ID
16
2 E B(3,2) Subsystem Vendor ID 1 6
3 0 C(3-0) ROM Base Address 3 2
3 4 D(3-0) Reserved
32
3 8 E(3-0) Reserved
32
3C F(0) Interrupt Line
8
3D F(1) Interrupt Pin
8
3 E F(2) Min Grant
8
3F F(3) Max Latency
8
Function
Interface Device
Manufacturer ID code
Interface Device ID code
PCI Command register
PCI Status register
Interface Device Revision
Contains index to chip’s
offset register
PCI Sub Class code
PCI Base Class code
NOT IMPLEMENTED
Maximum burst duration
00h or 80h
NOT IMPLEMENTED
Base addr. of card resources
NOT IMPLEMENTED
NOT IMPLEMENTED
NOT IMPLEMENTED
NOT IMPLEMENTED
NOT IMPLEMENTED
NOT IMPLEMENTED
Vendor assigned card ID no.
Card Manufacturer ID code
NOT IMPLEMENTED
NOT IMPLEMENTED
NOT IMPLEMENTED
Interrupt line routing
Interrupt Pin
NOT IMPLEMENTED
PCI Maximum Latency
Default
Va l u e
1309h
080Dh
0000h
0200h
00h
18h
80h
FFh
00h
00h
00h
00h
00000000h
00000000h
00000000h
00000000h
00000000h
00000000h
00000000h
0000h
0000h
00000000h
00000000h
00000000h
00h
00h
00h
00h
Only the upper 20 bits of Base Address 0 are writable, giving an address range of
4k. This cannot be changed from either the local or PCI bus. Local addresses are
given as the indirect address to be written to REGISTER_ADDRESS followed by
the byte number(s) i.e. the Vendor ID can be accessed by writing 0 to
REGISTER_ADDRESS and then reading or writing REGISTER_DATA0 and
REGISTER_DATA1.
- 14 - rev 1.2