Programming 37
Table 3-17 PCI Cardbus CIS Pointer Register
PCI Cardbus CIS Pointer: Offset $28
Bit
Description
Read
Write
Value after
PCI Reset
31:0
Cardbus Information Structure Pointer for PCMCIA
. Not Supported.
Yes
No
$0
Table 3-18 PCI Subsystem Vendor ID Register
PCI Subsystem Vendor ID: Offset $2C
Bit
Description
Read
Write
*Value after
PCI Reset
15:0
Subsystem Vendor ID (unique add-in board Vendor ID). Yes
No
$1556
*
NOTE
: The value $1556 denotes a PLD Application.
Table 3-19 PCI Subsystem ID Register
PCI Subsystem ID: Offset $2E
Bit
Description
Read
Write
*Value after
PCI Reset
15:0
Subsystem ID (unique add-in board device ID).
Yes
No
$0080
*
NOTE
: The value $0080 denotes a PLD Application PCI-X core.
Table 3-20 PCI Expansion ROM Base Register
PCI Expansion ROM Base: Offset $30
Bit
Description
Read
Write
*Value after
PCI Reset
0
Address Decode Enable.
A one (1) indicates a device accepts accesses to the Expansion ROM address.
A zero (0) indicates a device does not accept accesses to Expansion ROM
space. Should be set to zero (0) if there is no Expansion ROM. Works in
conjunction with EROMRR[0].
Yes
No
0
10:1
Reserved
Yes
No
$0
31:11 Expansion ROM Base Address (upper 21 bits).
Yes
Yes
$0
*
NOTE
: PCI Expansion ROM and related registers are not applicable to the Reflective Memory.
Table 3-21 PCI Capability Pointer Register
Capability Pointer: Offset $34
Bit
Description
Read
Write
Value after
PCI Reset
7:0
New Capability Pointer.
Offset into PCI Configuration Space for the location
of the first item in the New Capabilities Linked List.
Yes
No
$78
31:8
Reserved
Yes
No
$0