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21

PCM1737

B15

B14

B13

B12

B11

B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

B0

REGISTER 21

R/W

IDX6

IDX5

IDX4

IDX3

IDX2

IDX1

IDX0

INC

REG6

REG5

REG4

REG3

REG2

REG1

REG0

R/W

Read/Write Mode Select

When R/W = 0, a Write operation is performed.

When R/W = 1, a Read operation is performed.

Default Value: 0

INC

Auto-Increment Read Control

This bit is Read/Write.

Default Value: 0

INC = 0

Auto-Increment Read Disabled (default)

INC = 1

Auto-Increment Read Enabled

The INC bit is used to enable or disable the Auto-Increment Read feature of the Serial Control Interface. Refer

to the Serial Control Interface section of this data sheet for details regarding Auto-Increment Read operation.

REG[6:0]

Read Register Index

These bits are Read/Write.

Default Value: 01H

Bits REG[6:0] are used to set the index of the register to be read when performing a Single Register Read

operation. In the case of an Auto-Increment Read operation, bits REG[6:0] indicate the index of the last register

to be read in the in the Auto-Increment Read sequence. For example, if Registers 1 through 6 are to be read

during an Auto-Increment Read operation, bits REG[6:0] would be set to 06H.

Refer to the Serial Control Interface section of this data sheet for details regarding the Single Register and Auto-

Increment Read operations.