AK8858 Datasheet, PDF (71/96 Pages) Asahi Kasei Microsystems – PS/SD Multi Format Video Decoder

[9.1.7] NDMODE Register (R/W) [Sub Address 0x06]
Limiting auto input video signal detection candidates register setting
[AK8858]
Sub Address: 0x06
bit 7
bit 6
ND625L ND525L
Default Value
0
0
bit 5
NDPAL60
0
bit 4
NDNTSC443
0
bit 3
bit 2
Reserved NDSECAM
0
0
Default Value: 0x00
bit 1
bit 0
NDPALNC NDPALM
0
0
NDMODE Register
BIT Register Name
bit 0 NDPALM
bit 1 NOPALNC
bit 2 NDSECAM
bit 3 Reserved
bit 4 NDNTSC443
bit 5 NDPAL60
bit 6 ND525L
bit 7 ND625L
No Detect PAL-M
No Detect PAL-NC
No Detect SECAM
Reserved
No Detect NTSC-4.43
No Detect PAL60
No Detect 525 Line
No Detect 625 Line
R/W Definition
R/W
0: PAL-M candidate
1: PAL-M non-candidate
R/W
0: PAL-Nc candidate
1: PAL-Nc non-candidate
R/W
0: SECAM candidate
1: SECAM non-candidate
R/W Reserved
R/W
0: NTSC-4.43 candidate
1: NTSC-4.43 non-candidate
R/W
0: PAL-60 candidate
1: PAL-60 non-candidate
R/W
0: 525 line candidate
1: 525 line non-candidate
R/W
0: 625 line candidate
1: 625 line non-candidate
In making the above register settings, the following restrictions apply,
1. Setting both NDNTSC443(bit 4) and NDPAL60(bit 5) to [1] (High) is prohibited.
2. Setting both ND525L(bit 6) and ND625L(bit 7) to [1] (High) is prohibited.
3. To limit candidate formats, it is necessary to have the auto detection mode OFF while first setting the
register to non-limited signal status and next the NDMODE settings, and then setting the auto detection
mode to ON.
MS1230-E-00
- 71 -
2010/9