msm7661b Oki Semiconductor, msm7661b Datasheet - Page 17

• Manufacturer Part Number: msm7661b
• Description: Ntsc/pal Digital Video Decoder
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Register Description
Registers controlled by I
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]
MRA[6]
MRA[5]
MRA[4]
MRA[3]
MRA[2:0]
Mode Register B (MRB) <default: 0x18>
MRB[7]
MRB[6]
MRB[5]
MRB[4]
NTSC/PAL Auto select
Synchronization mode
Chroma format
Override
Video Input mode
Video Input mode
Sub Pixel Alignment
Color killer mode
Pixel Sampling Ratio
Blue Back
2
C bus are shown below.
*000:
001:
010:
100:
101:
*1:
*1:
*0:
*0:
*0:
*0:
*0:
*1:
*0:
*1:
0:
0:
1:
1:
1:
1:
0:
Fix
Auto
TV mode
VTR mode
Offset binary
2's Complement
external terminal mode
register mode
composite video input
S video input
NTSC CCIR601
NTSC Square Pixel
NTSC 4Fsc
PAL CCIR601
PAL Square Pixel
Sub Pixel Alignment is used.
Sub Pixel Alignment is not used.
Auto color killer (Chrominance signal level
becomes "0" when color burst level is below
specified value.)
Forced color killer ON (Chrominance signal
level is forced to be "0".)
(4:2:2)
OFF (Video signal is demodulated and
output regardless of synchronization
detection .)
AUTO (Blue Back is output when synchro-
nization is not detected.)
1:
13.5 MHz
12.27 MHz
14.31818 MHz
13.5 MHz
14.75 MHz
MSM7661B
(4:1:1)
17/42