PCA9665D datasheet(21/91 Pages) PHILIPS

21 / 91 page

PCA9665_2

Product data sheet

Rev. 02 — 7 December 2006

21 of 91

NXP Semiconductors

PCA9665

Fm+ parallel bus to I2C-bus controller

30h

Data byte in I2CDAT

has been transmitted;

NACK has been

received

Load data byte or 0

Data byte will be transmitted;

ACK/NACK will be received

no I2CDAT action

Repeated START will be transmitted;

no I2CDAT action

STOP condition will be transmitted;

STO ﬂag will be reset

no I2CDAT action 1

STOP condition followed by a START

condition will be transmitted;

STO ﬂag will be reset

38h

Arbitration lost in

SLA+W or Data bytes

No I2CDAT

action or

000

I2C-bus will be released;

PCA9665 will enter Slave mode.

No I2CDAT

action or

000

I2C-bus will be released;

PCA9665 will enter the Slave mode.

No I2CDAT

action

A START condition will be

transmitted when the bus becomes

free

Table 27.

Master Transmitter Byte mode (MODE = 0) …continued

Status

code

(I2CSTA)

Status of the

I2C-bus and the

PCA9665

Application software response

Next action taken by the PCA9665

To/from I2CDAT

To I2CCON

STA STO SI

MODE

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