TPL0102 datasheet(23/48 Pages) TI2

23 / 48 page

Device (Slave) Address (7 bits)

Data Byte to Register N (8 bits)

START

R/W=0

ACK

STOP

Write to one register in a device

Device (Slave) Address (7 bits)

Data Byte to Register N (8 bits)

Data Byte to Register N+1 (8 bits)

START

ACK

Write to multiple registers in a device

R/W=0

ACK

Master controls SDA line

Slave controls SDA line

continued

Data Byte to Register N+2 (8 bits)

Data Byte to Register N+3 (8 bits)

ACK

STOP

TPL0102

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SLIS134C – MARCH 2011 – REVISED SEPTEMBER 2015

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Programming with I

2C (continued)

If there are more bytes to write or read after the last register address is written to or read from in the register

map, auto increment will loop around to the register address at the beginning of the register map. For example,

after the ACR (register address 0x10h) has been written to, if there are more bytes to be written, the register

address will loop to the IVRA (register address 0x00h) at the beginning of the register map.

7.5.2.2 Write Operation

Figure 26. Write Operation to One or Multiple Registers

7.5.2.3 Repeated Start

A repeated START condition may be used in place of a complete STOP condition follow by another START

condition when performing a read function. The advantage of this is that the I2C bus does not become available

after the stop and therefore prevents other devices from grabbing the bus between transfers.

TPL0102 Datasheet(PDF) 23 Page - Texas Instruments