SX8663 datasheet(52/64 Pages) SEMTECH

Part #	SX8663

Description	Capacitive Button Matrix (up to 36) and Proximity Controller with Individual LED Drivers and Buzzer Output

PDF	64 Pages

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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52 / 64 page

ADVANCED COMMUNICATIONS & SENSING

Rev5 4

th August 2011

www.semtech.com

SX8663

Capacitive Button Matrix (up to 36) and Proximity Controller

with Individual LED Drivers and Buzzer Output

6.2

I2C read

The format of the I2C read is given in Figure 49.

After the start condition [S], the slave address (SA) is sent, followed by an eighth bit (‘0’) indicating a Write. The

SX8663 then acknowledges [A] that it is being addressed, and the master responds with an 8 bit data consisting

of the Register Address (RA). The slave acknowledges [A] and the master sends the Repeated Start Condition

[Sr]. Once again, the slave address (SA) is sent, followed by an eighth bit (‘1’) indicating a Read.

The SX8663 responds with acknowledge [A] and the Read Data byte (RD0). If the master needs to read more

data it will acknowledge [A] and the SX8663 will send the next read byte (RD1). This sequence can be repeated

until the master terminates with a NACK [N] followed by a stop [P].

Figure 49

I2C read

SX8663 Datasheet(PDF) 52 Page - Semtech Corporation