HMP8170 Datasheet, PDF (12/33 Pages) Intersil Corporation – NTSC/PAL Video Encoder

HMP8170, HMP8171, HMP8172, HMP8173
TABLE 10. BT.656 ANCILLARY DATA FORMAT FOR TELETEXT DATA
PIXEL INPUT
P15
P14
P13
P12
P11
P10
Preamble 1
0
0
0
0
0
0
Preamble 2
1
1
1
1
1
1
Preamble 3
1
1
1
1
1
1
Data ID
ep#
ep
1
1
0
1
Data Block Number
ep#
ep
0
0
0
0
Data Word Count
ep#
ep
0
1
0
1
Teletext Register
Data
(86 Nibbles)
ep#
ep
Line
Sys
bit 343
bit 342
ep#
ep
0
0
bit 339
bit 338
...
ep#
ep
0
0
bit 7
bit 6
ep#
ep
0
0
bit 3
bit 2
Reserved
ep#
ep
0
0
0
0
Reserved
ep#
ep
0
0
0
0
CRC
P14#
X
X
X
X
X
NOTES:
The even parity (EP and EP#) bits are ignored.
Line = Standard Select: 0 = 525 Lines; 1 = 625 Lines
Sys = System Select: 0 = System B; 1 = System C.
625-line system B uses 43 bytes; all bits are used.
525-line system B uses 35 bytes; bits 343-280 are ignored.
525-line system C uses 34 bytes; bits 343-272 are ignored.
X = Don’t Care.
TABLE 11. BT.656 ANCILLARY DATA FORMAT FOR PHINC DATA
PIXEL INPUT
P15
P14
P13
P12
P11
P10
Preamble 1
0
0
0
0
0
0
Preamble 2
1
1
1
1
1
1
Preamble 3
1
1
1
1
1
1
Data ID
ep#
ep
1
1
0
1
Data Block Number
ep#
ep
0
0
0
0
Data Word Count
ep#
ep
0
0
0
0
HPLL
Increment
(4 Nibbles)
ep#
ep
0
ep#
ep
0
ep#
ep
0
0
bit 15
bit 14
0
bit 11
bit 10
0
bit 7
bit 6
ep#
ep
0
0
bit 3
bit 2
FSCPLL
Increment
(8 Nibbles)
ep#
ep
PSW
0
bit 31
bit 30
ep#
ep
F2
F1
bit 27
bit 26
...
ep#
ep
0
0
bit 7
bit 6
ep#
ep
0
0
bit 3
bit 2
CRC
P14#
X
X
X
X
X
NOTES:
The even parity (EP and EP#) bits are ignored.
HPLL, PSW, F2, and F1 are ignored.
X = Don’t Care.
P9
0
1
1
0
0
1
bit 341
bit 337
bit 5
bit 1
0
0
X
P9
0
1
1
0
0
1
bit 13
bit 9
bit 5
bit 1
bit 29
bit 25
bit 5
bit 1
X
P8
0
1
1
0
1
0
bit 340
bit 336
bit 4
bit 0
0
0
X
P8
0
1
1
1
1
1
bit 12
bit 8
bit 4
bit 0
bit 28
bit 24
bit 4
bit 0
X
12