GL9701 datasheet(55/75 Pages) GENESYS

55 / 75 page

GL9701 PCI Express

TM to PCI Bridge

Page 55

6.40 Offset a1h: Slot Numbering Pointer to Next ID Register

Bits

Type

Default

Description

7:0

00h

Pointer to Next Capabilities

6.41 Offset a2h: Slot Numbering Expansion Slot Register

Bits

Type

Default

Description

4:0

Expansion Slots Provided – Contains the binary value of the

number of PCI expansion slots located directly on the secondary

interface of this bridge.

First in Chassis – If this bit is set, it indicates that this bridge is

the first in an expansion chassis. A bridge with this bit set

indicates the existence of an expansion chassis that requires a

unique chassis number.

0 – This is not a parent bridge.

1 – This is a parent bridge.

7:6

00b

Reserved

6.42 Offset a3h: Slot Numbering Chassis Number Register

Bits

Type

Default

Description

7:0

00h

Chassis Number: Contains the physical chassis number for the

slots on the bridge’s secondary interface.

6.43 Offset 100h: Advanced Error Reporting Enhanced Capability Header Register

Bits

Type

Default

Description

15:0

0001h

PCI Express Extended Capability ID

19:16

Capability Version

31:20

150h

Next Capability Offset – Next capability is Device Serial Number

Capability.

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