Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
331
13.3.8
BMBOUND—Offset 25h
Bunit Memory/IO Boundary Register
Access Method
Default: 40000000h
13.3.9
BMBOUND_HI—Offset 26h
Bunit Memory/IO HI Boundary Register
Access Method
Default: 80000000h
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 1 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
HO
ST_I
O
_
B
O
U
N
D
A
R
Y
RESE
RVE
D
_0
SE
ND
_A
LL
_A
CC
ESS_M
E
M
SEND
_B
OO
T_VE
C
TOR_T
O_DRA
M
Bit
Range
Default &
Access
Field Name (ID): Description
31:27
008h
RW
HOST_IO_BOUNDARY:
Host IO Boundary: Bits 31:27 are compared with incoming
Host Memory Request addresses to understand whether the associated transactions
should be routed to memory space (DRAM) or IO space. The Host IO Boundary starts at
this address and continues up to the 4GB address, 0xFFFF_FFFF.
26:2
0000000h
RO
RESERVED_0:
Reserved
1
0h
RW
SEND_ALL_ACCESS_MEM:
Send All Accesses to Memory: When set, all accesses will
be sent to memory, regardless of address.
0
0h
RW
SEND_BOOT_VECTOR_TO_DRAM:
When set accesses from 0xFFFF0000-0xFFFFFFFF
will be sent to memory regardless of the Host IO Boundary setting.
Type:
Message Bus Register
(Size: 32 bits)
Offset:
Op Codes:
h - Read, h - Write
h - Read, h - Write