5.0 Serial Programming Interface and Registers
5.4 Register Detail
Bt860/861
Multiport YCrCb to NTSC/PAL /SECAM
Register 55–56
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
55
56
00
TTXBF2[7:0]
Reserved
00
TTXBF2[8]
Reserved bits should be set to zero when written and will return zero when read.
TTXBF2[8:0]
Teletext Start Line for Field 2
Line number of first line of Teletex data for field 2, counted from top of field 2(1)
.
(TTXBF2 + 313 = PAL/SECAM line)
Register 57–58
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
57
58
00
00
TTXEF2[7:0]
Reserved
TTXEF2[8]
Reserved bits should be set to zero when written and will return zero when read.
TTXEF2[8:0]
Teletext End Line for Field 2
Line number of last line of Teletex data for field 2, counted from top of field 2(1)
.
(TTXEF2 + 313 = PAL/SECAM line)
Register 59
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
59
02
Reserved
TXRM
TXE
Reserved bits should be set to zero when written and will return zero when read.
TXRM
TXE
TTXREQ Configuration
0 = TTXREQ pin generates request signal based on TTXHS and TTXHE.
1 = TTXREQ pin generates a clock to latch data on TTXDAT pin.
Teletext Enable
0 = Disable Teletex encoding.
1 = Enable Teletex encoding.
5-36
Conexant
D860DSA
CONEXANT [ CONEXANT SYSTEMS, INC ]
