876784 Intel, 876784 Datasheet - Page 690

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

18.1.42
18.1.43
690
PMC—PCI Power Management Capabilities Register
(PCI Express—D28:F0/F1/F2/F3/F4/F5)
Address Offset: A2h
Default Value:
PMCS—PCI Power Management Control and Status
Register (PCI Express—D28:F0/F1/F2/F3/F4/F5)
Address Offset: A4h
Default Value:
15:11
31:24
21:16
14:9
8:6
2:0
7:2
Bit
Bit
10
23
22
15
9
5
4
3
8
PME_Support (PMES) — RO. This field indicates PME# is supported for states D0, D3
and D3
necessary for some legacy operating systems to enable PME# in devices connected
behind this root port.
D2_Support (D2S) — RO. The D2 state is not supported.
D1_Support (D1S) — RO The D1 state is not supported.
Aux_Current (AC) — RO. This field reports 375 mA maximum suspend well current
required when in the D3
Device Specific Initialization (DSI) — RO. This bit indicates that no device-specific
initialization is required.
Reserved
PME Clock (PMEC) — RO. This bit indicates that PCI clock is not required to generate
PME#.
Version (VS) — RO. This field indicates support for Revision 1.1 of the PCI Power
Management Specification.
Reserved
Bus Power / Clock Control Enable (BPCE). Reserved per PCI Express* Base
Specification, Revision 1.0a.
B2/B3 Support (B23S). Reserved per PCI Express* Base Specification, Revision 1.0a.
Reserved
PME Status (PMES) — RO. This bit indicates a PME was received on the downstream
link.
Reserved
PME Enable (PMEE) — R/W. Indicates PME is enabled. The root port takes no action
on this bit, but it must be R/W for some legacy operating systems to enable PME# on
devices connected to this root port.
0 = Disable.
1 = Enable.
NOTE: This bit is sticky and resides in the resume well. The reset for this bit is
Reserved
COLD
RSMRST# which is not asserted during a warm reset.
C802h
00000000h
. The root port does not generate PME#, but reporting that it does is
–
–
A3h
A7h
COLD
PCI Express* Configuration Registers (Desktop and Mobile Only)
state.
Description
Description
Attribute:
Size:
Attribute:
Size:
Intel
RO
16 bits
R/W, RO
32 bits
®
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