CDB4955A Cirrus Logic Inc, CDB4955A Datasheet - Page 51

• Manufacturer Part Number: CDB4955A
• Description: EVALUATION BOARD FOR CS4955A
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4955A

• Main Purpose: Video, Video Processing
• Embedded: Yes, Other
• Utilized Ic / Part: CS4955
• Primary Attributes: NTSC/PAL Digital Video Encoder
• Secondary Attributes: Graphical User Interface, RS-232 Interface
• Operating Frequency: 27 MHz
• Interface Type: RS-232, Composite, RGB, S-Video
• Operating Supply Voltage: 3.3 V, 5 V
• Software: Software Included
• Silicon Manufacturer: Cirrus Logic
• Silicon Core Number: CS4955
• Kit Application Type: Audio / Video / TV
• Application Sub Type: Encoder / Decoder
• Kit Contents: Evaluation Board
• Rohs Compliant: No
• For Use With/related Products: CS4954
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Teletext Register 6
Address
T
Address
T
Address
DS278F6
Bit Number
Bit Name
Default
Bit Number
Bit Name
Default
Bit Number
Bit Name
Default
eletext Register 7
eletext Register 8
Bit
7:0
Bit
7:0
Bit
7:5
2:0
4
3
TTX_LINE_DIS1
TTX_LINE_DIS2
TTX_LINE_DIS3
TTX_WINDOW
Mnemonic
Mnemonic
Mnemonic
Reserved
TTXHD
0
0
0
×
×
×
7
0
2F
7
0
30
7
0
31
Teletext disable bits corresponding to the lines 5-12 respectively, (11111111=all
eight lines are disabled),
(MSB is for line 5, LSB is for line 12)
Teletext disable bits corresponding to the lines 13-20 respectively, (11111111=all
eight lines are disabled,
(MSB is for line 13, LSB is for line 20)
TTXHD
If TTX_WINDOW = 0 these 3 bits are unused.
If TTX_WINDOW = 1 these 3 bits are the MSBs of the register 0×2A; 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)
TTX_DIS1
TTX_DIS2
TTX_DIS3
6
0
6
0
6
0
5
0
5
0
5
0
Read/Write
Read/Write
Read/Write
RESERVED TTX_WINDOW
4
0
TTX_LINE_DIS1
TTX_LINE_DIS2
4
0
4
0
Default Value = 00h
Default Value = 00h
Default Value = 00h
Function
Function
Function
3
0
3
0
3
0
2
0
2
0
2
0
CS4954 CS4955
TTX_LINE_DIS3
1
0
1
0
1
0
0
0
0
0
0
0
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