PCMD3140IRTER datasheet(53/106 Pages) TI

53 / 106 page

7.6 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

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PCMD3140

SBASA64A – DECEMBER 2020 – REVISED JUNE 2021

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PCMD3140IRTER Datasheet(PDF) 53 Page - Texas Instruments