PERICOMPI7C8150 datasheet(85/106 Pages) PERICOM

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PI7C8150

2-PORT PCI-TO-PCI BRIDGE

ADVANCE INFORMATION

August 22, 2002 – Revision 1.02

14.1.37

UPSTREAM (S TO P) MEMORY LIMIT UPPER 32-BITS

Bit

Function

Type

Description

31:0

Upstream

Memory Limit

Address

R/W

Defines bits [63:32] of the upstream memory limit

Reset to 0

14.1.38

P_SERR_L EVENT DISABLE REGISTER – OFFSET 64h

Bit

Function

Type

Description

Reserved

R/O

Reserved. Returns 0 when read. Reset to 0

Posted Write

Parity Error

R/W

Controls PI7C8150’s ability to assert P_SERR_L when it is unable to

transfer any read data from the target after 224 attempts.

0: P_SERR_L is asserted if this event occurs and the SERR_L enable

bit in the command register is set.

1: P_SERR_L is not assert if this event occurs.

Reset to 0

Posted Write

Non-Delivery

R/W

Controls PI7C8150’s ability to assert P_SERR_L when it is unable to

transfer delayed write data after 224 attempts.

0: P_SERR_L is asserted if this event occurs and the SERR_L enable

bit in the command register is set

1: P_SERR_L is not asserted if this event occurs

Reset to 0

Target Abort

During Posted

Write

R/W

Controls PI7C8150’s ability to assert P_SERR_L when it receives a

target abort when attempting to deliver posted write data.

0: P_SERR_L is asserted if this event occurs and the SERR_L enable

bit in the command register is set

1: P_SERR_L is not asserted if this event occurs

Reset to 0

Master Abort On

Posted Write

R/W

Controls PI7C8150’s ability to assert P_SERR_L when it receives a

master abort when attempting to deliver posted write data.

0: P_SERR# is asserted if this event occurs and the SERR# enable bit

in the command register is set

1: P_SERR# is not asserted if this event occurs

Reset to 0

Delayed Write

Non-Delivery

R/W

Controls PI7C8150’s ability to assert P_SERR# when it is unable to

transfer delayed write data after 224 attempts.

0: P_SERR_L is asserted if this event occurs and the SERR_L enable

bit in the command register is set

1: P_SERR_L is not asserted if this event occurs

Reset to 0

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