Bt860/861
5.0 Serial Programming Interface and Registers
5.4 Register Detail
Multiport YCrCb to NTSC/PAL /SECAM
Register 5A–5B
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
5A
5B
00
TTX_DIS[7:0]
TTX_DIS[15:8]
00
Reserved bits should be set to zero when written and will return zero when read.
TTX_DIS[15:0]
Teletext Disable by Line
A 1 in these bits disables individual lines of Teletex encoding.
TTX Line
(F1 / F2)
TTX Line
(F1 / F2)
Bit
Bit
TTX_DIS[0]
TTX_DIS[1]
TTX_DIS[2]
TTX_DIS[3]
TTX_DIS[4]
TTX_DIS[5]
TTX_DIS[6]
TTX_DIS[7]
8 / 321
TTX_DIS[8]
TTX_DIS[9]
TTX_DIS[10]
TTX_DIS[11]
TTX_DIS[12]
TTX_DIS[13]
TTX_DIS[14]
TTX_DIS[15]
16 / 329
17 / 330
18 / 331
19 / 332
20 / 333
21 / 334
22 / 335
23 / 336
9 / 322
10 / 323
11 / 324
12 / 325
13 / 326
14 / 327
15 / 328
Register 5C–5F
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
MULT_UU[7:0]
5C
5D
5E
5F
7F
00
00
7F
MULT_VU[7:0]
MULT_UV[7:0]
MULT_VV[7:0]
MULT_UU[7:0]
MULT_VU[7:0]
MULT_UV[7:0]
MULT_VV[7:0]
Chrominance Matrix Multiplier
Chrominance Matrix Multiplier
Chrominance Matrix Multiplier
Chrominance Matrix Multiplier
To rotate the hue by an angle θ, program the matrix multipliers as follows (except that the value
of +128 should be made +127). All register are twos complement.
MULT_UU = 128 × Cos(θ)
MULT_VU = 128 × Sin(θ)
MULT_UV = 128 × Sin(θ)
MULT_VV = 128 × Cos(θ)
D860DSA
Conexant
5-37
CONEXANT [ CONEXANT SYSTEMS, INC ]
