參數(shù)資料
型號(hào): MSM7661B
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: NTSC/PAL Digital Dencoder(NTSC/PAL制式數(shù)字譯碼器)
中文描述: NTSC / PAL數(shù)字Dencoder(的NTSC / PAL制式數(shù)字譯碼器)
文件頁數(shù): 17/42頁
文件大小: 302K
代理商: MSM7661B
Semiconductor
MSM7661B
17/42
Register Description
Registers controlled by I
2
C bus are shown below.
A register setting value with an "*" indicates the default.
Enter "0" to the undefined register when setting registers.
Mode Register A (MRA) <default: 0xC0>
MRA[7]
NTSC/PAL Auto select
0:
Fix
Auto
*1:
MRA[6]
Synchronization mode
0:
TV mode
VTR mode
*1:
MRA[5]
Chroma format
*0:
1:
Offset binary
2's Complement
MRA[4]
Override
*0:
1:
external terminal mode
register mode
MRA[3]
Video Input mode
*0:
1:
composite video input
S video input
MRA[2:0]
Video Input mode
*000:
001:
010:
100:
101:
NTSC CCIR601
NTSC Square Pixel
NTSC 4Fsc
PAL CCIR601
PAL Square Pixel
13.5 MHz
12.27 MHz
14.31818 MHz
13.5 MHz
14.75 MHz
Mode Register B (MRB) <default: 0x18>
MRB[7]
Sub Pixel Alignment
*0:
1:
Sub Pixel Alignment is used.
Sub Pixel Alignment is not used.
MRB[6]
Color killer mode
*0:
Auto color killer (Chrominance signal level
becomes "0" when color burst level is below
specified value.)
*1:
Forced color killer ON (Chrominance signal
level is forced to be "0".)
MRB[5]
Pixel Sampling Ratio
*0:
(4:2:2)
1:
(4:1:1)
MRB[4]
Blue Back
0:
OFF (Video signal is demodulated and
output regardless of synchronization
detection .)
AUTO (Blue Back is output when synchro-
nization is not detected.)
*1:
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