msm7664 Oki Semiconductor, msm7664 Datasheet - Page 45

• Manufacturer Part Number: msm7664
• Description: Ntsc/pal Digital Video Decoder
• Manufacturer: Oki Semiconductor

Note:
Luminance Control (LUMC)
Vertical Valid Trimmer (VVALT)
¡ Semiconductor
Note:
Default
Recommended Value
Default
Recommended Value
VVALT[7:4] VVALID start trimmer (¥ 1 line)
VVALT[3:0] VVALID stop trimmer (¥ 1 line)
LUMC[7]
Note: Control range while limiter is ON: 16 to 235
LUMC[6]
LUMC[5:4]
LUMC[3:2]
LUMC[1:0]
Register Name
Register Name
VVALID start position and end position are changed.
These registers are used for contour compensation.
Output level limiter
Use of prefilter
Aperture bandpass select
Coring range select
Aperture filter weighting factor
LUMC[7] LUMC[6] LUMC[5] LUMC[4] LUMC[3] LUMC[2] LUMC[1] LUMC[0]
VVALT
[7]
0
0
0
0
VVALT
[6]
0
0
0
0
Write only
Write only
VVALT
[5]
*00: range0 (middle)
*00: coring off
*00: 0.00
0
0
01: range1
10: range2
11: range3 (high)
01: 4LSB
10: 5LSB
11: 7LSB
01: 0.25
10: 0.75
11: 1.50
0
0
*0: OFF
*0: Do not use prefilter.
1: ON
1: Use prefilter.
VVALT
$8 to $7 (*$0): –8 to +7
$8 to $7 (*$0): –8 to +7
[4]
0
0
0
0
<address: $08>
<address: $07>
VVALT
[3]
0
0
0
0
VVALT
[2]
0
0
0
0
VVALT
PEDL7664-01
[1]
0
0
0
0
MSM7664
VVALT
45/76
[0]
0
0
0
0