PDP83TG720SWCSTQ1 datasheet(44/199 Pages) TI

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7.4.13.1 Example - Read Address Operation

For reading register addresses within MMD1 field:

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

2. Read the register address from register ADDAR.

7.4.14 Write Operation (No Post Increment)

To write a register in the extended register set:

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 0x401F (data, no post increment function field = 01, DEVAD = '11111') to register REGCR.

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

Subsequent writes to register ADDAR (step 4) continue to rewrite the register selected by the value in the

address register.

Note

Steps (1) and (2) can be skipped if the address register was previously configured.

7.4.14.1 Example - Write Operation (No Post Increment)

To write a register in the MMD1 extended register set:

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 0x4001 (data, no post increment function field = 01, DEVAD = '00001') to register REGCR.

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

7.4.15 Read Operation (No Post Increment)

To read a register in the extended register set:

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 0x401F (data, no post increment function field = 01, 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) continue to reading the register selected by the value in the

address register.

Note

Steps (1) and (2) can be skipped if the address register was previously configured.

7.4.15.1 Example - Read Operation (No Post Increment)

To read a register in the MMD1 extended register set:

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 0x4001 (data, no post increment function field = 01, DEVAD = '00001') to register REGCR.

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

7.4.16 Write Operation (Post Increment)

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

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') or the value 0xC01F

(data, post increment on writes function field = 11, DEVAD = '11111') to register REGCR.

DP83TG720S-Q1

SNLS604 – SEPTEMBER 2020

www.ti.com

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