參數(shù)資料
型號: BT848A
英文描述: Single-Chip Video Capture for PCI
中文描述: 單芯片的PCI視頻捕捉
文件頁數(shù): 109/141頁
文件大?。?/td> 1149K
代理商: BT848A
Brooktree
99
C
ONTROL
R
EGISTER
D
EFINITIONS
Chroma (U) Gain Register, Lower Byte
L848A_A
Bt848/848A/849A
Single-Chip Video Capture for PCI
Chroma (U) Gain Register, Lower Byte
Memory Mapped Location 0x034 – (SAT_U_LO)
Upon reset it is initialized to 0xFE. SAT_U_LO(0) is the least significant bit. SAT_U_MSB in the CONTROL regis-
ter, and SAT_U_LO concatenate to give a 9-bit register (SAT_U).
SAT_U
Bits
Type
Default
Name
Description
[7:0]
RW
0xFE
SAT_U_LO
This register is used to add a gain adjustment to the U component
of the video signal. By adjusting the U and V color components of
the video stream by the same incremental value, the saturation is
adjusted.
Decimal Value
Hex Value
% of Original Signal
511
0x1FF
201.18%
510
0x1FE
200.79%
.
.
.
.
.
.
255
0x0FF
100.39%
254
0x0FE*
100.00%
.
.
.
.
.
.
128
0x080
50.39%
.
.
.
.
.
.
1
0x001
0.39%
0
0x000
0.00%
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