5.0 Serial Programming Interface and Registers
5.4 Register Detail
Bt860/861
Multiport YCrCb to NTSC/PAL /SECAM
Register 39–3A
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
39
50
ALPHA_LUT_1[3:0]
ALPHA_LUT_0[3:0]
ALPHA_LUT_2[3:0]
3A
FA
ALPHA_LUT_3[3:0]
ALPHA_LUT_0[3:0]
ALPHA_LUT_1[3:0]
ALPHA_LUT_2[3:0]
ALPHA_LUT_3[3:0]
Alpha Blend Lookup Table Element 0
Alpha Blend Lookup Table Element 1
Alpha Blend Lookup Table Element 2
Alpha Blend Lookup Table Element 3
Alpha blend multiplier look-up table when using content-based blending.
(BLEND MODE = 0) and when using pin-based blending in either 1-bit or 2-bit modes
(BLEND MODE = 1 and ALPHAMODE = 01 or 10). If 1-bit pin-based alpha is used, a 0 on
ALPHA[0] applies. ALPHA_LUT_0 and a 1 applies ALPHA_LUT_3.
Register 3B
Default
Value
Register
D7
D6
D5
D4
D3
D2
D1
D0
3B
00
HUE_ADJUST[7:0]
HUE_ADJUST[7:0]
Hue Adjustment by Subcarrier Shift
HUE_ADJUST = 256 × (Phase)
360°
The hue adjustment ranges from 0° to 358.6°
5-30
Conexant
D860DSA