21150-AB Intel Corporation, 21150-AB Datasheet - Page 131

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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
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15.1.33
15.1.34
Preliminary
Datasheet
Next Item Ptr Register—Offset DDh
This section describes the next item ptr register. (Implemented in the 21150-AB and later revisions
only. In the 21150-AA, these registers are reserved.)
Dword address = DCh
Byte enable p_cbe_l<3:0> = xx0xb
Power Management Capabilities Register—Offset DEh
This section describes the power management capabilities register. (Implemented in the 21150-AB
and later revisions only. In the 21150-AA, these registers are reserved.)
Dword address = DCh
Byte enable p_cbe_l<3:0> = 00xxb
15:8
18:16
19
20
21
24:22
25
26
31:27
Dword Bit
Dword Bit
NEXT_ITEM
PM_VER
PME#Clock
AUX
DSI
Reserved
D1
D2
PME_SUP
Name
Name
R
R
R
R
R
R
R
R
R
R/W
R/W
Next item pointer. Reads as 0 to indicate
that there are no other ECP registers.
Power Management Revision. Reads as 001 to
indicate that this device is compliant with
Revision 1.0 of the PCI Power Management
Interface Specification .
PME# Clock Required. Reads as 0 to indicate
that this device does not
support the PME# pin.
Auxiliary Power Support. Reads as 0 to
indicate that this device does not have PME#
support or an auxiliary power source.
Device Specific Initialization. Reads as 0 to
indicate that this device does not have device-
specific initialization requirements.
Reserved. Read as 000b.
D1 Power State Support. Reads as 0 to
indicate that this device does not support the
D1 power management state.
D2 Power State Support. Reads as 0 to
indicate that this device does not support the
D2 power management state.
PME# Support. Reads as 0 to indicate that this
device does not support the PME# pin.
Description
Description
21150
123

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