TDA7563PD(2004) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7563PD
(Rev.:2004)

Multifunction quad power amplifier with built-in diagnostics features

STMicroelectronics 

TDA7563PD

9.4 Acknowledge

The transmitter* puts a resistive HIGH level on the SDA line during the acknowledge clock pulse (see fig. 30).

The receiver** the acknowledges has to pull-down (LOW) the SDA line during the acknowledge clock pulse, so

that the SDAline is stable LOW during this clock pulse.

* Transmitter

– master (µP) when it writes an address to the TDA7563PD

– slave (TDA7563PD) when the µP reads a data byte from TDA7563PD

** Receiver

– slave (TDA7563PD) when the µP writes an address to the TDA7563PD

– master (µP) when it reads a data byte from TDA7563PD

Figure 28. Data Validity on the I2CBUS

SDA

SCL

DATA LINE

STABLE, DATA

VALID

Figure 29. Timing Diagram on the I2CBUS

CHANGE

DATA

ALLOWED

D99AU1031

SCL

SDA

START

D99AU1032

Figure 30. Acknowledge on the I2CBUS

SCL

1

2

3

7

I2CBUS

STOP

8

9

SDA

START

MSB

D99AU1033

ACKNOWLEDGMENT

FROM RECEIVER

14/21

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