Intel D425 AU80610006252AA 사용자 설명서
제품 코드
AU80610006252AA
Processor Configuration Registers
120
Datasheet
1.9.24
DEVEN - Device Enable
B/D/F/Type: 0/2/0/PCI
Address Offset:
54-57h
Default Value:
00000019h
Access:
RO;
Size: 32
bits
Allows for enabling/disabling of PCI devices and functions that are within the CPU
Uncore. The table below the bit definitions describes the behavior of all combinations
Uncore. The table below the bit definitions describes the behavior of all combinations
of transactions to devices controlled by this register.
Bit Access Default
Value
Description
31:15 RO 00000h
Reserved ()
14 RO 0b
RESERVED ()
13:5 RO 000h
Reserved ():
4 RO 1b
Internal Graphics Engine Function 1
(D2F1EN):
0: Bus 0 Device 2 Function 1 is disabled and
hidden
1: Bus 0 Device 2 Function 1 is enabled and
visible
If Device 2 Function 0 is disabled and hidden,
then Device 2 Function 1 is also disabled and
hidden independent of the state of this bit.
If this component is not capable of Dual
Independent Display (CAPID0[40] = 1) then
this bit is hardwired to 0b to hide Device 2
Function 1.
(D2F1EN):
0: Bus 0 Device 2 Function 1 is disabled and
hidden
1: Bus 0 Device 2 Function 1 is enabled and
visible
If Device 2 Function 0 is disabled and hidden,
then Device 2 Function 1 is also disabled and
hidden independent of the state of this bit.
If this component is not capable of Dual
Independent Display (CAPID0[40] = 1) then
this bit is hardwired to 0b to hide Device 2
Function 1.
3 RO 1b
Internal Graphics Engine Function 0
(D2F0EN):
0: Bus 0 Device 2 Function 0 is disabled and
hidden
(D2F0EN):
0: Bus 0 Device 2 Function 0 is disabled and
hidden
1: Bus 0 Device 2 Function 0 is enabled and
visible
visible
If this CPU Uncore does not have internal
graphics capability (CAPID0[46] = 1) then
Device 2 Function 0 is disabled and hidden
independent of the state of this bit.
graphics capability (CAPID0[46] = 1) then
Device 2 Function 0 is disabled and hidden
independent of the state of this bit.
2:1 RO 00b
Reserved ():
0 RO 1b
Host Bridge (D0EN):
Bus 0 Device 0 Function 0 may not be disabled
and is therefore hardwired to 1.
Bus 0 Device 0 Function 0 may not be disabled
and is therefore hardwired to 1.