CS42448-CQZR Cirrus Logic Inc, CS42448-CQZR Datasheet - Page 41

• Manufacturer Part Number: CS42448-CQZR
• Description: IC,Soundcard Circuits,CMOS,QFP,64PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

DS648F3
6. REGISTER DESCRIPTION
All registers are read/write except for the I.D. and Revision Register and Interrupt Status Register which are read
only. See the following bit-definition tables for bit assignment information. The default state of each bit after a power-
up sequence or reset is listed in each bit description.
6.1
6.1.1
6.1.2
6.2
6.2.1
6.2.2
Chip_ID3
INCR
7
7
Memory Address Pointer (MAP)
Not a register
Chip I.D. and Revision Register (Address 01h) (Read Only)
Increment (INCR)
Default = 1
Function:
Memory address pointer auto increment control
0 - MAP is not incremented automatically.
1 - Internal MAP is automatically incremented after each read or write.
Memory Address Pointer (MAP[6:0])
Default = 0000001
Function:
Memory address pointer (MAP). Sets the register address that will be read or written by the control port.
Chip I.D. (CHIP_ID[3:0])
Default = 0000
Function:
I.D. code for the CS42448. Permanently set to 0000.
Chip Revision (REV_ID[3:0])
Default = 0001
Function:
CS42448 revision level. Revision A is coded as 0001.
Chip_ID2
MAP6
6
6
Chip_ID1
MAP5
5
5
Chip_ID0
MAP4
4
4
Rev_ID3
MAP3
3
3
Rev_ID2
MAP2
2
2
Rev_ID1
MAP1
1
1
CS42448
Rev_ID0
MAP0
0
0
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