Nxp-semiconductors PCA9665 Bedienungsanleitung PDF herunterladen (Seite 44)

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Product data sheet Rev. 02 — 7 December 2006 44 of 91

NXP Semiconductors

PCA9665

Fm+ parallel bus to I

C-bus controller

E8h Previouslyaddressed

with General Call;

BC[6:0] data bytes

have been received;

ACK has been

returned for all the

bytes, except for the

last one where NACK

bit has been returned

Read data bytes

X X 0 X 0 0 1 Switched to not addressed slave mode;

No recognition of own slave address;

General Call address will be recognized if GC = 1

Read data bytes

X X 0 X 0 1 1 Switched to not addressed slave mode;

Own slave address will be recognized;

General Call address will be recognized if GC = 1

Read data bytes

X X 1 X 0 0 1 Switched to not addressed slave mode;

No recognition of own slave address;

General Call address will be recognized if GC = 1;

A START condition will be transmitted when the

bus becomes free.

Read data bytes X X 1 X 0 1 1 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

X X 0 X 0 0 1 Switched to not addressed slave mode;

No recognition of own slave address;

General Call address will be recognized if GC = 1

No I2CDAT action

X X 0 X 0 1 1 Switched to not addressed slave mode;

Own slave address will be recognized;

General Call address will be recognized if GC = 1

No I2CDAT action

X X 1 X 0 0 1 Switched to not addressed slave mode;

No recognition of own slave address;

General Call address will be recognized if GC = 1;

A START condition will be transmitted when the

bus becomes free.

No I2CDAT action X X 1 X 0 1 1 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.

Table 40. Slave Receiver Buffered mode (MODE = 1)

…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/from I2CCOUNT To I2CCON

LB BC[6:0] STA STO SI AA MODE

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 90 91

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