Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
423
Access Method
Default: 00000000h
14.9.6
GTTMMADR_MSB—Offset 14h
Access Method
Default: 00000000h
Type:
PCI Configuration Register
(Size: 32 bits)
GTTMMADR_LSB:
Power Well:
Core
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
MBA_
LS
B_0
RS
VD_1
RS
VD_2
ME
M
T
Y
P_
3
RS
VD_4
Bit
Range
Default &
Access
Description
31:22
000h
RW
MBA_LSB (MBA_LSB_0):
Memory Base Address (MBA): Set by the OS, these bits
correspond to address signals [35:22]. 4MB combined for MMIO and Global GTT table
aperture (2MB for MMIO and 2 MB for GTT).
21:4
00000h
RO
RSVD (RSVD_1):
RSVD: Hardwired to 0 to indicate at least 4MB address range.
3
0b
RO
RSVD (RSVD_2):
Prefetchable Memory (PREFMEM): Hardwired to 0to prevent
prefetching.
2:1
00b
RO
MEMTYP (MEMTYP_3):
Memory Type (MEMTYP): 00 : To indicate 32 bit base address
01: Reserved 10 : To indicate 64 bit base address 11: Reserved
0
0b
RO
RSVD (RSVD_4):
Memory/IO Space (MIOS): Hardwired to 0 to indicate memory
space.
Type:
PCI Configuration Register
(Size: 32 bits)
GTTMMADR_MSB:
Power Well:
Core
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
RSV
D
_0
MB
A
_
M
S
B
_
1
Bit
Range
Default &
Access
Description
31:4
00000000h
RO
RSVD (RSVD_0):
Reserved for Memory Base Address (RSVD): Must be set to 0 since
addressing above 64GB is not supported.
3:0
0h
RO
MBA_MSB (MBA_MSB_1):
Memory Base Address (MBA): Set by the OS, these bits
correspond to address signals [35:22]. 4MB combined for MMIO and Global GTT table
aperture (2MB for MMIO and 2 MB for GTT).