CS42428 datasheet(42/73 Pages) CIRRUS

42 / 73 page

DS605F1

CS42428

6. REGISTER DESCRIPTION

All registers are read/write except for the I.D. and Revision Register, OMCK/PLL_CLK Ratio Register, Clock Status

and Interrupt Status Register which are read only. See the following bit definition tables for bit assignment informa-

tion. The default state of each bit after a power-up sequence or reset is listed in each bit description.

6.1

Memory Address Pointer (MAP)

Not a register

6.1.1

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.

6.1.2

MEMORY ADDRESS POINTER (MAPX)

Default = 0000001

Function:

Memory Address Pointer (MAP). Sets the register address that will be read or written by the control

port.

6.2

Chip I.D. and Revision Register (address 01h) (Read Only)

6.2.1

CHIP I.D. (CHIP_IDX)

Default = 1111

Function:

I.D. code for the CS42428. Permanently set to 1111.

6.2.2

CHIP REVISION (REV_IDX)

Default = xxxx

Function:

CS42428 revision level.

Revision C1 is coded as 0101

Revision C is coded as 0011.

543

INCR

MAP6

MAP5

MAP4

MAP3

MAP2

MAP1

MAP0

543

Chip_ID3

Chip_ID2

Chip_ID1

CHIP_ID0

Rev_ID3

Rev_ID2

Rev_ID1

Rev_ID0

CS42428 Datasheet(PDF) 42 Page - Cirrus Logic

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