Nxp-semiconductors PCA9665 Manual do Utilizador descarregar pdf (Página 28)

Product data sheet Rev. 02 — 7 December 2006 28 of 91

NXP Semiconductors

PCA9665

Fm+ parallel bus to I

C-bus controller

E0h Previously

addressed with

General Call; Data

has been received;

ACK has been

returned

Read data byte or X X 0 0 0 Data byte will be received and

NACK will be returned.

read data byte X X 0 1 0 Data byte will be received and ACK

will be returned.

E8h Previously

addressed with

General Call; Data

has been received;

NACK has been

returned

Read data byte or 0 X 0 0 0 Switched to not addressed slave

mode; no recognition of own slave

address or General Call address.

read data byte or 0 X 0 1 0 Switched to not addressed slave

mode; own slave address will be

recognized; General Call address

will be recognized if GC = 1.

read data byte or 1 0 0 0 0 Switched to not addressed slave

mode; no recognition of own slave

address or General Call address. A

START condition will be transmitted

when the bus becomes free.

read data byte 1 0 0 1 0 Switched to not addressed slave

mode; own slave address will be

recognized; General Call address

will be recognized if GC = 1. A

START condition will be transmitted

when the bus becomes free.

A0h A STOP condition or

repeated START

condition has been

received while still

addressed as Slave

Receiver

No I2CDAT action

0 X 0 0 0 Switched to not addressed slave

mode; no recognition of own slave

address or General Call address.

No I2CDAT action

0 X 0 1 0 Switched to not addressed slave

mode; Own slave address will be

recognized; General Call will be

recognized if GC = 1.

No I2CDAT action

1 X 0 0 0 Switched to not addressed slave

mode; no recognition of own slave

address or General Call. A START

condition will be transmitted when

the bus becomes free

No I2CDAT action 1 X 0 1 0 Switched to not addressed slave

mode; Own slave address will be

recognized; General Call will be

recognized if GC = 1. A START

condition will be transmitted when

the bus becomes free.

Table 31. Slave Receiver Byte mode (MODE = 0)

…continued

Status

code

(I2CSTA)

Status of the

C-bus and the

PCA9665

Application software response Next action taken by the

PCA9665

To/from I2CDAT To I2CCON

STA STO SI AA MODE

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 90 91

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