AK8859VN Datasheet, PDF (21/72 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

[AK8859VN]
[7.6.] Limiting auto detection candidates of input signal
In auto detection mode, the candidates for detection can be limited via register.
Name
NDPALM
NDPALNC
NDSECAM
Reserved
NDNTSC443
NDPAL60
ND525L
ND625L
Definition
[0]: PAL-M candidate
[1]: PAL-M non-candidate
[0]: PAL-Nc candidate
[1]: PAL-Nc non-candidate
[0]: SECAM candidate
[1]: SECAM non-candidate
Reserved
[0]: NTSC-4.43 candidate
[1]: NTSC-4.43 non-candidate
[0]: PAL-60 candidate
[1]: PAL-60 non-candidate
[0]: 525Line candidate
[1]: 525Line non-candidate
[0]: 625Line candidate
[1]: 625Line non-candidate
Sub Address: 0x03 “NDMODE Register”
Notes
In making the above register settings, the following restrictions apply.
1. Setting both NDNTSC443-bit and NDPAL60-bit to 1 is prohibited.
2. Setting both ND525L-bit and ND625L-bit to 1 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.
Set auto detection mode to OFF
Set Input Video Standard Register to non-limited signal status
Enter NDMODE Register setting
Set auto detection mode to ON
MS1179-E-00
AKM Confidential
- 21 -
2010/04