TLK110 Datasheet, PDF (26/104 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer

TLK110
SLLS901A – DECEMBER 2011 – REVISED FEBRUARY 2012
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4.3.1.3 Write (no post increment) Operation
To write an extended register set register:
1. Write the value 0x001F (address function field = 00, DEVAD = 31) 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 = 31) to register REGCR.
4. Write the content of the desired extended register set register 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.
4.3.1.4 Read (no post increment) Operation
To read an extended register set register:
1. Write the value 0x001F (address function field = 00, DEVAD = 31) 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 = 31) to register REGCR.
4. Read the content of the desired extended register set register to register ADDAR.
Subsequent reads from register ADDAR (step 4) continue 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.
4.3.1.5 Write (post increment) Operation
1. Write the value 0x001F (address function field = 00, DEVAD = 31) to register REGCR.
2. Write the register address from register ADDAR.
3. Write the value 0x801F (data, post increment on reads and writes function field = 10, DEVAD = 31) or
the value 0xC01F (data, post increment on writes function field = 11. DEVAD = 31) to register REGCR.
4. Write the content of the desired extended register set register 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, i.e address register is incremented after each access.
4.3.1.6 Read (post increment) Operation
To read an extended register set register 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 = 31) to register REGCR.
2. Write the desired register address to register ADDAR.
3. Write the value 0x801F (data, post increment on reads and writes function field = 10, DEVAD = 31) to
register REGCR.
4. Read the content of the desired extended register set register to register ADDAR.
Subsequent reads to register ADDAR (step 4) read the next higher addressed data register selected by
the value of the address register, i.e address register is incremented after each access.
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