msm7661b Oki Semiconductor, msm7661b Datasheet - Page 18

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

¡ Semiconductor
MRB[3]
MRB[2]
(Note) This register becomes valid at doube-speed clock input(27 MHz).
MRB[1:0]
(Note) Adaptive comb filter:
Horizontal Sync Trimmer (HSYT) <default: 0x00>
HSYT[7:4]
HSYT[3:0]
Sync Threshold level adjust (STHR) <default: 0x00>
STHR[7:0]
(Note) The sync signal detect threshold level is adjusted.
Horizontal Sync Delay (HSDL) <default: 0x00>
HSDL[7:0]
Horizontal Valid Trimmer (HVALT) <default: 0x00>
HVALT[7:0]
HVALT[3:0]
Non-adaptive comb filter:
Sync enable, clamping pulse 0:
Data-pass control
Y/C separation mode
HSY begin trimmer (8/pixel)
HSY stop trimmer (8/pixel)
Sync depth
HSYNC_L delay trimmer (4/pixel)
HVALID begin trimmer (1/pixel)
HVALID stop trimmer (1/pixel)
*00:
2/3-line comb filter at NTSC
Comb filter/trap filter at PAL
3-line comb filter at NTSC
2-line cosine comb filter at PAL
01:
10:
11:
*1:
*0:
1:
HSY outputs "HIGH" level.
HSY outputs active.
DECIMETER is used at 2X sampling.
No DECIMETER is used.
Adaptive comb filter (Operation mode is
selected monitoring the correlation of 3
lines.)
Nonadaptive comb filter (Operation mode
is always fixed.)
Comb filter is not used. (Trap filter is used.)
Undefined
0xC: –4 (–32) to 0xB: +11 (+88)
0xC: –4 (–32) to 0xB: +11 (+88)
0x80: –128 (–512) to 0x7F: +127 (508)
0x0: –0 to *0x37:55 to 0xFF:255
0x8: –8 to 0x7: +7
0x8: –8 to 0x7: +7
MSM7661B
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