Bt860/861
5.0 Serial Programming Interface and Registers
5.4 Register Detail
Multiport YCrCb to NTSC/PAL /SECAM
Register 4F–50
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
4F
50
07
TTXHE[7:0]
00
Reserved
TTXHE[10:8]
Reserved bits should be set to zero when written and will return zero when read.
TTXHE[10:0]
TTXREQ Falling Edge
Number of clocks from falling edge of HSYNC* to falling edge of TTXREQ minus an offset.
Used when TXRM = 0.
TTXHE = (desired distance in clocks) – 2 (3 for slave mode)
Register 51–52
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
51
52
00
00
TTXBF1[7:0]
Reserved
TTXBF1[8]
Reserved bits should be set to zero when written and will return zero when read.
TTXBF1[8:0]
Teletext Start Line for Field 1
Line number of first line of Teletext data for field 1(1)
.
Register 53–54
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
53
54
00
00
TTXEF1[7:0]
Reserved
TTXEF1[8]
Reserved bits should be set to zero when written and will return zero when read.
TTXEF1[8:0]
Teletext End Line for Field 1
Line number of last line of Teletex data for field 1(1)
.
D860DSA
Conexant
5-35
CONEXANT [ CONEXANT SYSTEMS, INC ]
