PDP83TG720SWCSTQ1 datasheet(45/199 Pages) TI

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4. Write the content of the desired extended register set to register ADDAR.

Subsequent writes to register ADDAR (step 4) write the next higher addressed data register selected by the

value of the address register; the address register is incremented after each access.

7.4.16.1 Example - Write Operation (Post Increment)

To write a register in the MMD1 extended register set with post increment:

1. Write the value 0x0001 (address function field = 00, DEVAD = '00001') to register REGCR.

2. Write the desired register address to register ADDAR.

3. Write the value 0x8001 (data, post increment function field = 10, DEVAD = '00001') or the value 0xC001

(data, post increment on writes function field = 11, DEVAD = '00001') to register REGCR.

4. Write the content of the desired extended register set to register ADDAR.

7.4.17 Read Operation (Post Increment)

To read a register in the extended register set and automatically increment the address register to the next

higher value following the write operation:

1. Write the value 0x001F (address function field = 00, DEVAD = '11111') to register REGCR.

2. Write the desired register address to register ADDAR.

3. Write the value 0x801F (data, post increment function field = 10, DEVAD = '11111') to register REGCR.

4. Read the content of the desired extended register set in register ADDAR.

Subsequent reads to register ADDAR (step 4) read the next higher addressed data register selected by the

value of the address register; the address register is incremented after each access.

7.4.17.1 Example - Read Operation (Post Increment)

To read a register in the MMD1 extended register set and automatically increment the address register to the

next higher value following the write operation:

1. Write the value 0x0001 (address function field = 00, DEVAD = '00001') to register REGCR.

2. Write the desired register address to register ADDAR.

3. Write the value 0x8001 (data, post increment function field = 10, DEVAD = '00001') to register REGCR.

4. Read the content of the desired extended register set in register ADDAR.

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DP83TG720S-Q1

SNLS604 – SEPTEMBER 2020

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PDP83TG720SWCSTQ1 데이터시트(PDF) 45 Page - Texas Instruments