Nxp-semiconductors PCA9665 Manual do Utilizador descarregar pdf (Página 54)

Product data sheet Rev. 02 — 7 December 2006 54 of 91

NXP Semiconductors

PCA9665

Fm+ parallel bus to I

C-bus controller

Table 44. Unbuffered Mode (MODE = 0)

Control

bits

LB = x

AA = 0 Master Transmitter mode

• address/data are transmitted on a byte basis

Master Receiver mode

• address is transmitted and data are received on a

byte basis

• NACK returned after one byte received

Slave Transmitter mode

• NACK returned after own slave address received

• switch to not addressed slave mode any time

during an I

C-bus sequence

Slave Receiver mode

• NACK returned after own slave address received

• NACK returned after one byte received

AA = 1 Master Transmitter mode

• address/data are transmitted on a byte basis

Master Receiver mode

• data are received on a byte basis

• ACK returned after one byte received

Slave Transmitter mode

• ACK returned after own slave address received

• always addressed during an I

C-bus sequence

Slave Receiver mode

• ACK returned after own slave address received

• ACK returned after one byte received

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Nxp-semiconductors PCA9665 Manual do Utilizador Página 54