21150-AB Revision Id Register Offset - Intel Corporation

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21150-AB

Manufacturer Part Number
21150-AB
Description
Communications, Transparent PCI-to-PCI Bridge
Manufacturer
Intel Corporation
Datasheet

Specifications of 21150-AB

Case
QFP
15.1.5
Revision ID Register—Offset 08h
This section describes the revision ID register.
Dword address = 08h
Byte enable p_cbe_l<3:0> = xxx0b
Dword Bit
7:0
Revision ID
15.1.6
Programming Interface Register—Offset 09h
This section describes the programming interface register.
Dword address = 08h
Byte enable p_cbe_l<3:0> = xx0xb
Dword Bit
15:8
Programming interface
15.1.7
Subclass Code Register—Offset 0Ah
This section describes the subclass code register.
Dword address = 08h
Byte enable p_cbe_l<:0> = x0xxb
Dword Bit
23:16
Subclass code
15.1.8
Base Class Code Register—Offset 0Bh
This section describes the base class code register.
Dword address = 08h
Byte enable p_cbe_l<3> = 0xxxb
Dword Bit
31:24
Base class code
Preliminary
Datasheet
Name
R/W
Indicates the revision number of this device.
R
The initial revision reads as 0. Subsequent
revisions increment by 1.
Name
R/W
No programming interfaces have been defined
for PCI-to-PCI bridges.
R
Reads as 0.
Name
R/W
Reads as 04h to indicate that this bridge
R
device is a PCI-to-PCI bridge.
Name
R/W
Reads as 06h to indicate that this device is a
R
bridge device.
21150
Description
Description
Description
Description
109

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