CS4954 CS4955
Teletext Register 6
Address
Bit Number
Bit Name
Default
Bit
7:0
0
脳
2F
7
0
TTX_DIS1
6
0
5
0
Read/Write
4
0
Default Value = 00h
3
0
2
0
1
0
0
0
TTX_LINE_DIS1
Mnemonic
Function
Teletext disable bits corresponding to the lines 5-12 respectively, (11111111=all
TTX_LINE_DIS1
eight lines are disabled),
(MSB is for line 5, LSB is for line 12)
T
eletext Register 7
Address
Bit Number
Bit Name
Default
Bit
7:0
0
脳
30
7
0
TTX_DIS2
6
0
5
0
Read/Write
4
0
Default Value = 00h
3
0
2
0
1
0
0
0
TTX_LINE_DIS2
Mnemonic
Function
Teletext disable bits corresponding to the lines 13-20 respectively, (11111111=all
TTX_LINE_DIS2
eight lines are disablled,
(MSB is for line 13, LSB is for line 20)
T
eletext Register 8
Address
Bit Number
Bit Name
Default
Bit
7:5
4
3
2:0
0
脳
31
7
0
TTX_DIS3
6
TTXHD
0
0
5
Read/Write
4
0
Default Value = 00h
3
0
2
0
1
TTX_LINE_DIS3
0
0
0
RESERVED TTX_WINDOW
Mnemonic
TTXHD
Reserved
TTX_WINDOW
TTX_LINE_DIS3
Function
If TTX_WINDOW = 0 these 3 bits are unused.
If TTX_WINDOW = 1 these 3 bits are the MSBs of the register 0脳2A; they are used
to specify the length of the teletext insertion window
Selects between TTXRQ (= 0) pulsation or TTXRQ (= 1) Window mode
Teletext disable bits corresponding to the lines 13-20 respectively, (111=all three
lines are disabled),
(MSB is for line 21, LSB is for line 23)
48
DS278PP4