Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
337
13.3.15
BTHMASK—Offset 3Fh
Bunit Throttling Masks (BTHMASK) The BTHMASK register contains the fields that
control BUnit throttling of transactions to DRAM. If any channel is throttled 100%, by
its field being set to all zeroes, then a system deadlock is possible.
Access Method
Default: FFFFFFFFh
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
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
O
R
W
R
IT
E_M
ASK
OR
R
E
A
D
_M
ASK
E
R
W
R
IT
E_M
ASK
E
RREAD
_M
A
S
K
Bit
Range
Default &
Access
Field Name (ID): Description
31:24
FFh
RW
ORWRITE_MASK:
Odd Ranks Write Mask (ORWriteMask): The Odd Rank Write mask is
an eight bit value that determines the 1us time slices during which write transactions
bound for these DRAM ranks will be allowed to proceed through Bunit arbitration.
23:16
FFh
RW
ORREAD_MASK:
Odd Ranks Read Mask (ORReadMask): The Odd Rank Read mask is
an eight bit value that determines the 1us time slices during which read transactions
bound for these DRAM ranks will be allowed to proceed through Bunit arbitration.
15:8
FFh
RW
ERWRITE_MASK:
Even Rank Write Mask (ERWriteMask): The Even Rank Write mask is
an eight bit value that determines the 1us time slices during which write transactions
bound for these DRAM ranks will be allowed to proceed through Bunit arbitration.
7:0
FFh
RW
ERREAD_MASK:
Even Rank Read Mask (ERReadMask): The Even Rank Read mask is
an eight bit value that determines the 1us time slices during which read transactions
bound for these DRAM ranks will be allowed to proceed through Bunit arbitration.