Owner manual

CS4954 CS4955
DS278F6 49
Filter Register 5
Address 0×27 B_AMP Read/Write Default Value = 80h
Filter Register 6
Address 0×28 Bright_Offsett Read/Write Default Value = 00h
Teletext Register 0
Address 0×29 TTXHS Read/Write Default Value = A1h
Teletext Register 1
Address 0×2A TTXHD Read/Write Default Value = 02h
Bit Number
76543210
Bit Name
B_AMP
Default
10000000
Bit Mnemonic Function
7:0 B_AMP
Blue amplitude coefficient
Bit Number
76543210
Bit Name
BRIGHTNESS_OFFSET
Default
00000000
Bit Mnemonic Function
7:0 BRGHT_OFFSET
Brightness adjustment ( range: -128 to +127)
Bit Number
76543210
Bit Name
TTXHS
Default
10100001
Bit Mnemonic Function
7:0 TTXHS
Start of teletext request pulses or start of window
Bit Number
76543210
Bit Name
TTXHD
Default
00000010
Bit Mnemonic Function
7:0 TTXHD
If TTX_WINDOW = 0 then this register is used as the Pipeline delay between
TTXRQ and TTXDAT signals in the teletext source. User programmable delay step
of 37 ns per LSB.
If TTX_WINDOW = 1 then this register is used as the 8 LSBs of the teletext insertion
windows; the 3 MSBs are located in register 0×31. (register 0×31 bit 3)