AK8858 Datasheet, PDF (70/96 Pages) Asahi Kasei Microsystems – PS/SD Multi Format Video Decoder

[9.1.6] Output Format Register (R/W) [Sub Address 0x05]
Output data format setting.
[AK8858]
Sub Address: 0x05
bit 7
bit 6
VBIDEC1
VBIDEC0
Default Value
0
0
bit 5
SLLVL
0
bit 4
TRSVSEL
0
bit 3
601LIMIT
0
bit 2
VBIL2
0
Default Value: 0x00
bit 1
bit 0
VBIL1 VBIL0
0
0
Output Format Register
BIT Register Name
bit 0 VBIL0
~
~
bit 2 VBIL2
Vertical
Blanking
Interval Length
bit 3 601LIMIT
bit 4 TRSVSEL
bit 5 SLLVL
601 Output Limit
Time
Reference
Signal
V Select
Slice Level
bit 6 VBIDEC0
~
~
bit 7 VBIDEC1
VBI Decode
R/W Definition
Vertical blanking interval length setting,
entered as difference from the default settings
The default settings are:
(525i) Line1~Line19 and Line263.5~Line282.5
(625i) Line623.5~Line23.5 and Line311~Line335
(525p) Line1~Line42
(625p) Line 621~Line625 and Line1~Line44
Examples of lengthening and shortening:
If lengthened 1 line, the interval becomes
(525i) Line1~Line20 and Line263.5~Line283.5
(625i) Line623.5~Line24.5 and Line311~Line336
(525p) Line1~Line43
(625p) Line 621~Line625 and Line1~Line45
R/W If shortened 1 line, the interval becomes
(525i) Line1~Line18 and Line263.5~Line281.5
(625i) Line623.5~Line22.5 and Line311~Line334
(525p) Line1~Line41
(625p) Line 621~Line625 and Line1~Line43
[ VBIL2 : VBIL0 ]
[001]: VBI lengthened 1 line
[010]: VBI lengthened 2 lines
[011]: VBI lengthened 3 lines
[000]: Default
[101]: VBI shortened 3 lines
[110]: VBI shortened 2 lines
[111]: VBI shortened 1 line
[100]: Reserved
Output data code limit (Min-Max) setting
R/W 0: 1-254 (Y/CbCr)
1: 16-235 (Y), 16-240 (Cb/Cr)
Setting of lines for “Time reference signal”
R/W
V-bit value change in ITU-R BT.656 format
0: ITU-R Bt.656-3
1: ITU-R Bt.656-4 and SMPTE125M
Slice level setting
R/W 0: Slice level approx. 25 IRE
1: Slice level approx. 50 IRE
Setting for type of data output during interval
set in Vertical Blanking Interval register *
[ VBIDEC1: VBIDEC0 ]
R/W [00]: Black level data output
[01]: Monochrome data output
[10]: Slice result data output
[11]: Reserved
MS1230-E-00
- 70 -
2010/9