LP8551TLX-ASLASHNOPB.A datasheet(23/46 Pages) TI2

23 / 46 page

LP8551

www.ti.com

SNVS673E – APRIL 2010 – REVISED SEPTEMBER 2014

Programming (continued)

•

Master device sends slave address (7 bits) and the data direction bit (r/w = 0).

•

Slave device sends acknowledge signal if the slave address is correct.

•

Master sends control register address (8 bits).

•

Slave sends acknowledge signal.

•

Master sends data byte to be written to the addressed register.

•

Slave sends acknowledge signal.

•

If master sends further data bytes the control register address is incremented by one after acknowledge

signal.

•

Write cycle ends when the master creates stop condition.

8.5.1.7 Control Register Read Cycle

•

Master device generates a start condition.

•

Master device sends slave address (7 bits) and the data direction bit (r/w = 0).

•

Slave device sends acknowledge signal if the slave address is correct.

•

Master sends control register address (8 bits).

•

Slave sends acknowledge signal.

•

Master device generates repeated start condition.

•

Master sends the slave address (7 bits) and the data direction bit (r/w = 1).

•

Slave sends acknowledge signal if the slave address is correct.

•

Slave sends data byte from addressed register.

•

If the master device sends acknowledge signal, the control register address is incremented by one. Slave

device sends data byte from addressed register.

•

Read cycle ends when the master does not generate acknowledge signal after data byte and generates stop

condition.

Table 3. Data Read and Write Cycles

ADDRESS MODE

<Slave Address><r/w = 0>[Ack]

<Register Addr.>[Ack]

Data Read

<Slave Address><r/w = 1>[Ack]

[Register Data]<Ack or NAck>

… additional reads from subsequent register address possible

<Slave Address><r/w=’0’>[Ack]

<Register Addr.>[Ack]

Data Write

<Register Data>[Ack]

… additional writes to subsequent register address possible

Submit Documentation Feedback

Product Folder Links: LP8551

LP8551TLX-A/NOPB.A Datasheet(PDF) 23 Page - Texas Instruments

LP8551TLX-A/NOPB.A Datasheet(HTML) 23 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Datasheet Download

Link URL