beautypg.com

Intel 460GX User Manual

Page 46

background image

Register Descriptions

2-26

Intel® 460GX Chipset Software Developer’s Manual

2.4.5.6

NERR_GART

Function Number:

BFN+1

Address Offset:

8Eh

Size:

8 bits

Default Value:

00h each

Attribute:

Read/Write Clear

Sticky:

Yes

Locked:

No

This register records all error conditions detected in the GART logic after the first error. Errors
recorded in FERR_GART are not recorded here.

Bits

Description

7:0

See FERR_GART for definitions of these bits.

2.4.5.7

PAC_ERR: PCI Address & Cmd First Error

Function Number:

BFN+1

Address Offset:

A0h

Size:

64 bits

Default Value:

0000000000h each

Attribute:

Read/Write

Sticky:

Yes

Locked:

No

These registers record and latch the Address and Command information on the PCI Bus for the first
error detected.

Bits

Description

63:46

reserved(0)

45

PCI Parity (2nd phase of DAC, not defined for non-DAC address).

44

PCI Parity (if DAC, this is the parity of the first half of the address).

43:40

PCI Command - Command of Error.

39:0

PCI Address - Address Received on Error. (possible DAC address).

2.4.5.8

PD_ERR: PCI Data First Error

Function Number:

BFN+1

Address Offset:

A8h

Size:

64 bits

Default Value:

00h each

Attribute:

Read/Write

Sticky:

Yes

Locked:

No

These registers record and latch the Data and Byte Enable information on the PCI Bus for the first
error detected.

Bits

Description

63:37

reserved(0)

36

PCI Parity.

35:32

PCI Byte Enable [3:0] - Byte Enable of Error.

31:0

PCI Data - Data of Error.