PCM1820 datasheet(63/130 Pages) TI

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8.6 Register Maps

This section describes the control registers for the device in detail. All registers are eight bits in width and are

allocated to device configuration and programmable coefficients settings. These registers are mapped internally

using a page scheme that can be controlled using I2C communication to the device. Each page contains 128

bytes of registers. All device configuration registers are stored in page 0, which is the default page setting at

power up (and after a software reset). All programmable coefficient registers are located in page 2, page 3, and

page 4. The device current page can be switch to a new desired page by using the PAGE[7:0] bits located in

Do not read from or write to reserved pages or reserved registers. Write only default values for the reserved bits

in the valid registers.

The procedure for register access across pages is:

• Select page N (write data N to register 0 regardless of the current page number)

• Read or write data from or to valid registers in page N

• Select the new page M (write data M to register 0 regardless of the current page number)

• Read or write data from or to valid registers in page M

• Repeat as needed

8.6.1 Device Configuration Registers

This section describes the device configuration registers for page 0 and page 1.

8.6.1.1 TLV320ADC6120 Access Codes

Table 8-54 lists the access codes used for the TLV320ADC6120 registers.

Table 8-54. TLV320ADCx120 Access Type Codes

ACCESS TYPE

CODE

DESCRIPTION

Read Type

Read

R-W

R/W

Read or write

Write Type

Write

Reset or Default Value

-n

Value after reset or the default value

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TLV320ADC6120

SBASA92A – DECEMBER 2020 – REVISED JUNE 2021

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PCM1820 Datasheet(PDF) 63 Page - Texas Instruments