參數(shù)資料
型號(hào): HMPVIDEVALISA
廠商: Intersil Corporation
英文描述: NTSC/PAL Video Decoder
中文描述: NTSC / PAL視頻解碼器
文件頁(yè)數(shù): 20/43頁(yè)
文件大?。?/td> 183K
代理商: HMPVIDEVALISA
20
REAL TIME CONTROL INTERFACE
The Real Time Control Interface (RTCI) outputs timing infor-
mation for a NTSC/PAL encoder as BT.656 ancillary data.
This allows the encoder to generate “clean” output video.
RTCI information via BT.656 ancillary data is shown in Table
8. If enabled, this transfer occurs once per line and is com-
pleted before the start of the SAV sequence.
The PSW bit is always a “0” for NTSC encoding. During PAL
encoding, it indicates the sign of V (“0” = negative; “1” = pos-
itive) for that scan line.
TABLE 8. OUTPUTTING RTCI AS BT.656 ANCILLARY DATA
PIXEL INPUT
P15
P14
P13
P12
P11
P10
P9
P8
Preamble
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Data ID
P14
ep
1
1
0
1
0
1
Data Block Number
P14
ep
0
0
0
0
0
1
Data Word Count
P14
ep
0
0
0
0
1
1
HPLL
Increment
P14
ep
0
0
0
0
0
0
P14
ep
0
0
0
0
0
0
P14
ep
0
0
0
0
0
0
P14
ep
0
0
0
0
0
0
FSCPLL
Increment
P14
ep
PSW
0
bit 31
bit 30
bit 29
bit 28
P14
ep
F2 = 0
F1 = 0
bit 27
bit 26
bit 25
bit 24
:
P14
ep
0
0
bit 7
bit 6
bit 5
bit 4
P14
ep
0
0
bit 3
bit 2
bit 1
bit 0
CRC
P14
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
NOTES:
40. ep = even parity for P8-P13.
41. CRC = Sum of P8-P14 of Data ID through last user data word. Preset to all zeros, carry is ignored.
HMP8115
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