Intel E3845 FH8065301487715 Data Sheet
Product codes
FH8065301487715
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
321
13.2
SoC Transaction Router PCI Config Access IO Registers
13.2.1
ACF8—Offset CF8h
A-Unit Configuration CF8 Value (ACF8) The A-Unit CF8 (PCI Configuration Address
Register) is made available for save/restore purposes. This register is saved and
restored by the Punit during S0iX transitions in order to ensure proper handling of a
possible subsequent CFC transaction after returning from standby or hibernate state.
This is carried over from Aunit implementation in LNC.
Access Method
Default: 00000000h
Table 158.
Summary of PCI Configuration Space Access I/O Registers
Offset
Size
(Bytes)
Register Name (Register Symbol)
Default
Value
CF8–CF8h
1
00000000h
CFC–CFFh
4
00000000h
Type:
I/O Register
(Size: 32 bits)
Offset:
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
CF
G
_
M
A
P_
EN
C
F8_RES
ERV
E
D_0
BU
S_
N
U
M
DEV
ICE
_N
UM
FUNC
TIO
N
_N
UM
DBL_WD
C
F8_RES
ERV
E
D_1
Bit
Range
Default &
Access
Field Name (ID): Description
31
0h
RW
CFG_MAP_EN:
Configuration Space Mapping Enable: This bit enables Configuration
Space mapping. The value set by full-dword writes to I/O address CF8
30:24
0h
RW
CF8_RESERVED_0:
Reserved. The value set by full-dword writes to I/O address CF8
23:16
0h
RW
BUS_NUM:
Bus Number: This is the target Bus Number of the resulting Configuration
request. The value set by full-dword writes to I/O address CF8
15:11
0h
RW
DEVICE_NUM:
Device Number: This is the target Device Number of the resulting
Configuration request. The value set by full-dword writes to I/O address CF8
10:8
0h
RW
FUNCTION_NUM:
Function Number: This is the target Function Number of the
resulting Configuration request. The value set by full-dword writes to I/O address CF8
7:2
0h
RW
DBL_WD:
Double Word: This is the target dword of the resulting Configuration request.
The value set by full-dword writes to I/O address CF8
1:0
0h
RW
CF8_RESERVED_1:
Reserved. This field should be always set to 2'b00. The value set
by full-dword writes to I/O address CF8