Intel E3815 FH8065301567411 データシート
製品コード
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
849
14.11.180 FW2—Offset 70038h
Display FIFO Watermark Control 2
Access Method
31
28
24
20
16
12
8
4
0
0 0 1 1 1 1 1 1 1 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
DISPLA
Y
_
FIFO_SE
LF_REFRES
H_W
A
TE
RMARK_PROGRAMMING
RE
S
E
R
V
E
D
_
CURSOR_B_FIFO_W
A
T
E
RMARK
_
D
ISP
LA
Y_P
LANE_B_FIFO
_W
A
T
ERMARK
DIS
P
LA
Y
_
PL
ANE_A_FIFO
_W
A
T
ERMARK
Bit
Range
Default &
Access
Field Name (ID): Description
31:23
001111111
b
RW
DISPLAY_FIFO_SELF_REFRESH_WATERMARK_PROGRAMMING:
This register
defines the value of the watermark used by the Display streamer in case the CPU is in
C2/C3/C4 and the memory has entered self refresh. Number in 64Bs of space in FIFO
above which the Display Stream will generate requests to Memory (Value should be as
recommended in the high priority bandwidth analysis spreadsheet).Note [DevCL,
DevCTG, DevCDV]:
When calculating watermark values for 15/16bpp display formats, assume 32bpp for
purposes of calculation using the high priority bandwidth analysis spreadsheet.
22
0b
RW
RESERVED_:
MBZ
21:16
001111b
RW
CURSOR_B_FIFO_WATERMARK_:
Number in 64Bs of space in the Cursor B FIFO
above which the Cursor B Stream will generate requests to Memory (Value should be as
recommended in the high priority bandwidth analysis spreadsheet). DevBW, DevCL,
DevCDV] Always program to 8.
15:8
00001111b
RW
DISPLAY_PLANE_B_FIFO_WATERMARK:
Number in 64Bs of space in FIFO above
which the Display B Stream will generate requests to Memory (Value should be as
recommended in the high priority bandwidth analysis spreadsheet).
[DevBW, DevCL, DevCDV] Always program to 8.
7:0
00001111b
RW
DISPLAY_PLANE_A_FIFO_WATERMARK:
Number in 64Bs of space in FIFO above
which the Display A Stream will generate requests to Memory (Value should be as
recommended in the high priority bandwidth analysis spreadsheet).
[DevBW, DevCL, DevCDV] Always program to 8.