Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
318
Datasheet
13.1
Transaction Router A-Unit Message Registers
13.1.1
ACF8—Offset 10h
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 157.
Summary of A-Unit Message Bus Registers—Port 0x00
Offset
Register Name (Register Symbol)
Default
Value
10–10h
00000000h
52–52h
00000000h
Type:
Message Bus Register
(Size: 32 bits)
Offset:
Op Codes:
h - Read, h - Write
h - Read, h - Write
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
CFG_M
A
P
_
EN
CF8_RESE
R
VE
D_0
BUS_NUM
DE
V
ICE
_
N
UM
FU
NCTION_NUM
DB
L_
W
D
CF8_RESE
R
VE
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