25 cti control register, 26 sync control register – Texas Instruments TVP5147M1PFP User Manual
Page 48
Functional Description
40
SLES140A—March 2007
TVP5147M1PFP
2.11.25 CTI Control Register
Subaddress
2Eh
Default
00h
7
6
5
4
3
2
1
0
CTI coring [3:0]
CTI gain [3:0]
CTI coring [3:0]: 4-bit CTI coring limit control value, unsigned linear control range from 0 to
±
60, step size = 4
1111 =
±
60
0001 =
±
4
0000 = 0 (default)
CTI gain [3:0]: 4-bit CTI gain control values, unsigned linear control range from 0 to 15/16, step size = 1/16
1111 = 15/16
0001 = 1/16
0000 = 0 disabled (default)
2.11.26 Sync Control Register
Subaddress
32h
Default
00h
7
6
5
4
3
2
1
0
Reserved
Polarity FID
Polarity VS
Polarity HS
VS/VBLK
HS/CS
Polarity FID: determines polarity of FID terminal
0 = First field high, second field low (default)
1 = First field low, second field high
Polarity VS: determines polarity of VS terminal
0 = Active low (default)
1 = Active high
Polarity HS: determines polarity of HS terminal
0 = Active low (default)
1 = Active high
VS or VBLK:
0 = VS terminal outputs vertical sync (default)
1 = VS terminal outputs vertical blank
HS or CS:
0 = HS terminal outputs horizontal sync (default)
1 = HS terminal outputs composite sync