CDB4954 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CDB4954 Datasheet PDF : 60 Pages
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CS4954 CS4955
Interrupt Register 0
Address
0×32
Bit Number
7
Bit Name
Default
0
Bit
Mnemonic
7:3
-
2
INT_21_EN
1
INT_284_EN
0
INT_V_EN
INT_EN
Read/Write
Default Value = 00h
6
5
4
RESERVED
0
0
0
3
2
1
INT_21_EN INT_284_EN
0
0
0
Function
reserved
interrupt enable for closed caption line 21
interrupt enable for closed caption line 284
interrupt enable for new video field
0
INT_V_EN
0
Interrupt Register 1
Address
0×33
Bit Number
7
Bit Name
Default
0
Bit
Mnemonic
7:3
-
2
CLR_INT_21
1
CLR_INT_284
0
CLR_INT_V
INT_CLR
Read/Write
Default Value = 00h
6
5
4
RESERVED
0
0
0
3
2
1
CLR_INT_21 CLR_INT_284
0
0
0
Function
reserved
clear interrupt for closed caption line 21 (INT 21)
clear interrupt for closed caption line 284 (INT_284)
clear interrupt for new video field (INT_V)
0
CLR_INT_V
0
Status Register 0
Address
0×34
STATUS_0 Read Only
Default Value = 00h
Bit Number
5
4
3
2:0
Bit Name
INT_21
INT_284
INT_V
FLD
Default
0
0
0
0
Bit
Mnemonic
Function
5
INT_21
Interrupt flag for line 21 (closed caption) complete
4
INT_284
Interrupt flag for line 284 (closed caption) complete
3
INT_V
Interrupt flag for video field change
2:0
FLD_ST
Field Status bits(001 = field 1,000 = field 8)
Status Register 1
Address
0×5A
STATUS_1 Read only
Default Value = 04h
Bit Number
Bit Name
Default
7
6
5
4
3
2
1
0
DEVICE_ID
0
0
0
0
0
1
0
0
Bit
Mnemonic
Function
7:0
DEVICE_ID Device identification: CS4954: 0000 0100, CS4955: 0000 0101
52
DS278F6
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