THS7313 datasheet(33/48 Pages) TI

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A = No Acknowledge (SDA High)

A = Acknowledge

S = Start Condition

P = Stop Condition

W = Write

R = Read

DATA

Slave Address

From Transmitter

From Receiver

ACK

Acknowledge

(From Receiver)

I C Device Address and

Read/Write Bit

R/W

ACK

Stop

Condition

Acknowledge

(Receiver)

Last Data Byte

SDA

First Data

Byte

Start

Condition

Acknowledge

(Transmitter)

ACK

Other

Data Bytes

A = No Acknowledge (SDA High)

A = Acknowledge

S = Start Condition

P = Stop Condition

W = Write

R = Read

DATA

Slave Address

Transmitter

Receiver

ACK

Acknowledge

(From

Receiver)

I C Device Address and

Read/Write Bit

R/W

ACK

Stop

Condition

Acknowledge

(From

Transmitter)

Last Data Byte

SDA

ACK

First Data

Byte

Start

Condition

Not

Acknowledge

(Transmitter)

Other

Data Bytes

THS7313

SLOS483 – NOVEMBER 2005

APPLICATION INFORMATION (continued)

acknowledges data bytes sent by the slave. When the master has received all of the requested data bytes from

the slave, the not acknowledge (A) condition is initiated by the master by keeping the SDA signal high just before

it asserts the stop (P) condition. This sequence terminates a read cycle as shown in Figure 64 and Figure 65.

Note that the THS7313 does not allow multiple read transfers to occur. See example section – Reading from the

THS7313 for more information.

Figure 62. I2C Write Cycle

Figure 63. Multiple Byte Write Transfer

Figure 64. I2C Read Cycle

Figure 65. Multiple Byte Read Transfer

THS7313 Datasheet(PDF) 33 Page - Texas Instruments

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