Intel D425 AU80610006252AA User Manual
Product codes
AU80610006252AA
Processor Configuration Registers
Datasheet
107
Bit Access Default
Value
Description
1 RW 0b
Memory Access Enable (MAE):
This bit controls the IGD's response to memory space
accesses.
0: Disable.
1: Enable.
This bit controls the IGD's response to memory space
accesses.
0: Disable.
1: Enable.
0 RW 0b
I/O Access Enable (IOAE):
This bit controls the IGD's response to I/O space
accesses.
0: Disable.
1: Enable.
This bit controls the IGD's response to I/O space
accesses.
0: Disable.
1: Enable.
1.9.4
PCISTS2 - PCI Status
B/D/F/Type: 0/2/0/PCI
Address Offset:
Address Offset:
6-7h
Default Value:
0090h
Access:
RO;
Size: 16
bits
PCISTS is a 16-bit status register that reports the occurrence of a PCI compliant
master abort and PCI compliant target abort.
master abort and PCI compliant target abort.
PCISTS also indicates the DEVSEL# timing that has been set by the IGD.
Bit Access Default
Value
Description
15 RO 0b
Detected Parity Error (DPE):
Since the IGD does not detect parity, this bit is always
hardwired to 0.
Since the IGD does not detect parity, this bit is always
hardwired to 0.
14 RO 0b
Signaled System Error (SSE):
The IGD never asserts SERR#, therefore this bit is
hardwired to 0.
The IGD never asserts SERR#, therefore this bit is
hardwired to 0.
13 RO 0b
Received Master Abort Status (RMAS):
The IGD never gets a Master Abort, therefore this bit is
hardwired to 0.
The IGD never gets a Master Abort, therefore this bit is
hardwired to 0.
12 RO 0b
Received Target Abort Status (RTAS):
The IGD never gets a Target Abort, therefore this bit is
hardwired to 0.
The IGD never gets a Target Abort, therefore this bit is
hardwired to 0.
11 RO 0b
Signaled Target Abort Status (STAS):
Hardwired to 0. The IGD does not use target abort
semantics.
Hardwired to 0. The IGD does not use target abort
semantics.
10:9 RO 00b
DEVSEL Timing (DEVT):
N/A. These bits are hardwired to "00".
N/A. These bits are hardwired to "00".