Register Description

 

Table 37.

Offset 06h: PSTS—Primary Device Status (Sheet 2 of 2)

 

 

 

 

 

Bits

 

Type

Reset

Description

 

 

 

 

 

 

 

 

 

Signaled Target Abort (STA): This bit is set when a completion packet with Completer

11

 

RWC

0b

Abort (CA) status is generated on PCI Express*.

 

0 = No error.

 

 

 

 

 

 

 

 

1 = Completer Abort (CA) status transmitted on PCI Express* interface

 

 

 

 

 

10:9

 

RO

00b

DEVSEL# Timing (DVT): These bits have no meaning on PCI Express*. Fast decode

 

timing is reported.

 

 

 

 

 

 

 

 

 

 

 

 

 

Master Data Parity Error Detected (MDPD): This bit is set when the 41210 detects an

 

 

 

 

uncorrectable data error. This bit is set when the parity error response enable bit (PERE) in

 

 

 

 

the Command Register (“Offset 04h: PCICMD—Command Register” on page 78) is set and

 

 

 

 

one of the following conditions occurs:

8

 

RWC

0b

• The bridge receives a completion with a poisoned TLP on the PCI Express* interface.

 

• The bridge receives a completion with poisoned data on the peer PCI segment.

 

 

 

 

 

 

 

 

• The bridge poisons a write request on the PCI Express* interface.

 

 

 

 

0 = No error

 

 

 

 

1 = Data Parity Error in completion packet received or a write request transmitted

 

 

 

 

 

7

 

RO

0b

Fast Back-to-Back Capable (FBC): This bit has no meaning on PCI Express*.

 

 

 

 

 

6

 

RO

0b

Reserved

 

 

 

 

 

5

 

RO

0b

66 MHz Capable (C66): This bit has no meaning on PCI Express*.

 

 

 

 

 

 

 

 

 

Capabilities List Enable (CAPE): This bit indicates the capabilities pointer in the 41210.

4

 

RO

1b

Offset 34H indicates the offset for the first entry in the linked list of capabilities.

 

0 = No capabilities enabled

 

 

 

 

 

 

 

 

1 = Capabilities enabled and accessible from 34H

 

 

 

 

 

3

 

RO

0b

Interrupt Status: The 41210 does not generate internal interrupts. This bit is hard-wired

 

to 0.

 

 

 

 

 

 

 

 

 

2:0

 

RO

0h

Reserved

 

 

 

 

 

12.2.4Offset 08h: REVID—Revision ID

This register is the Revision ID Register.

Table 38.

Offset 08h: REVID—Revision ID

 

 

 

 

 

Bits

 

Type

Reset

Description

 

 

 

 

 

 

 

 

 

Revision ID (RID): These bits indicate the stepping (die version) of the Intel® 41210 Serial

7:0

 

RO

00h

to Parallel PCI Bridge.

 

 

 

 

0000 0000 A-0 stepping

 

 

 

 

 

80

Intel® 41210 Serial to Parallel PCI Bridge Developer’s Manual

Page 80
Image 80
Intel 41210 manual Offset 08h REVID-Revision ID, Offset 06h PSTS-Primary Device Status Sheet 2, Bits