CS4955-CQZ View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS4955-CQZ Datasheet PDF : 60 Pages
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CS4954 CS4955
Background Color Register
Address
0×08
BKG_COLOR Read/Write
Default Value = 03h
Bit Number
7
6
5
4
3
2
1
0
Bit Name
BG
Default
0
0
0
0
0
0
1
1
Bit
Mnemonic
Function
7:0
BG
Background color (7:5 = R, 4:2 = G, 1:0 = B) (default is 0000 0011 - blue)
GPIO Control Register
Address
0×09
GPIO__REG Read/Write
Default Value = 00h
Bit Number
7
6
5
4
3
2
1
0
Bit Name
GPR_CNTRL
Default
0
0
0
0
0
0
0
0
Bit
Mnemonic
Function
7:0
GPR CNTRL Input(0)/output(1) control of GPIO registers (bit 0: PDAT(0), bit 7: PDAT(7))
GPIO Data Register
Address
0×0A
GPIO_REG Read/Write
Default Value = 00h
Bit Number
Bit Name
Default
7
6
0
0
5
4
3
2
1
0
GPIO REG
0
0
0
0
0
0
Bit
Mnemonic
Function
GPIO data register ( data is output on PDAT bus if appropriate bit in address 09 is
7:0
GPIO REG set to “1”, otherwise data is input/output through I²C)- This register is only accessible
in I²C mode.
Sync Register 0
Address
Bit Number
Bit Name
Default
0×0D
7
1
Sync_0
Read/Write
6
5
4
PROG VS[4:0]
0
0
1
Default Value = 90h
3
2
1
0
PROG HS[10:8]
0
0
0
0
Bit
Mnemonic
Function
7:3
PROG VS[4:0] programmable vsync lines
2:0
PROG HS[10:8] programmable hsync pixels (3 most significant bits)
DS278F6
43
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