PI7C8150BMA-33 datasheet(74/107 Pages) PERICOM

74 / 107 page

PI7C8150B

ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE

Page 74 of 107

April 2015 – Revision 2.1

CONFIGURATION REGISTERS

PCI configuration defines a 64-byte space (configuration header) to define various

attributes of PI7C8150B as shown below.

14.1

CONFIGURATION REGISTER

31-24

23-16

15-8

7-0

Address

Device ID

Vendor ID

00h

Primary Status

Command

04h

Class Code

Revision ID

08h

Reserved

Header Type

Primary Latency Timer

Cache Line Size

0Ch

Reserved

10h

Reserved

14h

Secondary Latency

Timer

Subordinate Bus

Number

Secondary Bus

Number

Primary Bus Number

18h

Secondary Status

I/O Limit

I/O Base

1Ch

Memory Limit

Memory Base

20h

Prefetchable Memory Limit

Prefetchable Memory Base

24h

Prefetchable Base Upper 32-bit

28h

Prefetchable Limit Upper 32-bit

2Ch

I/O Limit Upper 16-bit

I/O Base Upper 16-bit

30h

Reserved

Capability Pointer to

DCh

34h

Reserved

38h

Bridge Control

Reserved

Interrupt Line

3Ch

Arbiter Control

Diagnostic / Chip Control

40h

Reserved

44h

Upstream Memory Control

Extended Chip Control

48h

Secondary

Bus Arbiter

Preemption

Control

Hot Swap Switch Time Slot

4Ch

Upstream (S to P) Memory Limit

Upstream (S to P) Memory Base

50h

Upstream (S to P) Memory Base Upper 32-bit

54h

Upstream (S to P) Memory Limit Upper 32-bit

58h

Reserved

5Ch

Reserved

60h

GPIO Data and Control

P_SERR# Event

Disable

64h

Reserved

P_SERR_L Status

Secondary Clock Control

68h

Reserved

6Ch

Reserved

70h

Reserved

Port Option

74h

Retry Counter

78h

Reserved

7Ch

Secondary Master Timeout Counter

Primary Master Timeout Counter

80h

Reserved

84h-AFh

Chassis Number

Slot Number

Next Pointer

Capability ID

B0h

Reserved

B4h-D8h

Power Management Capabilities

Next Item Pointer

Capability ID

DCh

Reserved

PPB Support Extensions

Power Management Data

E0h

Reserved

Next Pointer

Capability ID

E4h

Reserved

E8h-FFh

14.1.1

VENDOR ID REGISTER – OFFSET 00h

Bit

Function

Type

Description

15:0

Vendor ID

R/O

Identifies Pericom as vendor of this device. Hardwired as 12D8h.

15-0048

PI7C8150BMA-33 Datasheet(PDF) 74 Page - Pericom Semiconductor Corporation

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