PCI4410A Datasheet, PDF (163/198 Pages) Texas Instruments – PC CARD AND OHCI CONTROLLER

9.12 Configuration ROM Mapping Register
The configuration ROM mapping register contains the start address within system memory that maps to the start
address of 1394 configuration ROM for this node. See Table 9–8 for a complete description of the register contents.
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Name
Configuration ROM mapping
Type
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Default 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Name
Configuration ROM mapping
Type
R/W R/W R/W R/W R/W R/W R
R
R
R
R
R
R
R
R
R
Default 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Type:
Offset:
Default:
Configuration ROM mapping
Read-only, Read/Write
34h
0000 0000h
Table 9–8. Configuration ROM Mapping Register Description
BIT
31–10
9–0
SIGNAL
configROMaddr
RSVD
TYPE
R/W
R
FUNCTION
If a quadlet read request to 1394 offset FFFF F000 0400h through offset FFFF F000 07FFh is
received, the low-order 10 bits of the offset are added to this register to determine the host memory
address of the read request.
Reserved. Bits 9–0 return 0s when read.
9.13 Posted Write Address Low Register
The posted write address low register is used to communicate error information if a write request is posted and an
error occurs while the posted data packet is being written. See Table 9–9 for a complete description of the register
contents.
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Name
Posted write address low
Type
RU RU RU RU RU RU RU RU RU RU RU RU RU RU RU RU
Default X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Name
Posted write address low
Type
RU RU RU RU RU RU RU RU RU RU RU RU RU RU RU RU
Default X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Register:
Type:
Offset:
Default:
Posted write address low
Read/Update
38h
XXXX XXXXh
BIT
31–0
SIGNAL
offsetLo
Table 9–9. Posted Write Address Low Register Description
TYPE
FUNCTION
RU The lower 32 bits of the 1394 destination offset of the write request that failed.
9–11