OX12PCI840 Datasheet, PDF (10/33 Pages) List of Unclassifed Manufacturers – Integrated Parallel Port and PCI interface

OXFORD SEMICONDUCTOR LTD.
OX12PCI840
4.2.1 PCI Configuration Space Register map
Configuration Register Description
31
16
15
0
Device ID
Vendor ID
Status
Command
Class Code
Revision ID
BIST¹
Header Type
Reserved
Reserved
Base Address Register 0 (BAR0) - Function in I/O space
Base Address Register 1 (BAR 1) - Function in I/O space
Base Address Register 2 (BAR 2) – Local Configuration Registers in IO space
Base Address Register 3 (BAR3) – Local Configuration Registers in Memory space
Base Address Register 4 (BAR4) – Function in Memory Space
Reserved
Reserved
Subsystem ID
Subsystem Vendor ID
Reserved
Reserved
Cap_Ptr
Reserved
Reserved
Reserved
Interrupt Pin
Interrupt Line
Power Management Capabilities (PMC)
Next Ptr
Cap_ID
Reserved
Reserved
PMC Control/Status Register (PMCSR)
Table 2: PCI Configuration space
Offset
Address
00h
04h
08h
0Ch
10h
14h
18h
1Ch
20h
24h
28h
2Ch
30h
34h
38h
3Ch
40h
44h
Register name
Vendor ID
Device ID
Command
Status
Revision ID
Class code
Header type
BAR 0
BAR 1
BAR 2
BAR 3
BAR 4
Subsystem VID
Subsystem ID
Cap ptr.
Interrupt line
Interrupt pin
Cap ID
Next ptr.
PM capabilities
PMC control/ status register
Reset value
0x1415
0x8403
0x0000
0x0290
0x00
0x070103
0x00
0x00000001
0x00000001
0x00000001
0x00000000
Reserved
0x1415
Program read/write
EEPROM
PCI
W
R
W
R
-
R/W
W(bit 4)
R/W
-
R
W
R
-
R
-
R/W
-
R/W
-
R/W
-
R/W
-
R/W
W
R
0x0001
0x40
0x00
0x01
0x01
0x00
0x6C01
0x0000
W
R
-
R
-
R/W
W
R
-
R
-
R
W
R
-
R/W
Table 3: PCI configuration space default values
DS-0021 Jun 05
Page 10