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PCA9665_2 © NXP B.V. 2006. All rights reserved.
Product data sheet Rev. 02 — 7 December 2006 42 of 91
NXP Semiconductors PCA9665
Fm+ parallel bus to I2C-bus controller
Table 40. Slave Receiver Buffered mode (MODE= 1)
Status
code
(I2CSTA)
Status of the
I2C-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
60h Own SLA+W has
been received;
ACK has been
returned
NoI2CDAT action
or 0 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them.
No I2CDAT action 1 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them, except for the last
one where NACK bit will be returned (unless
master transmitter sends a STOP or Repeated
START condition before).
68h Arbitration lost in
SLA+R/W as master;
Own SLA+W has
been received;
ACK has been
returned
NoI2CDAT action
or 0 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them.
No I2CDAT action 1 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them, except for the last
one where NACK bit will be returned (unless
master transmitter sends a STOP or Repeated
START condition before).
D0h GeneralCall address
(00h) has been
received;
ACK has been
returned.
NoI2CDAT action
or 0 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them.
No I2CDAT action 1 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them, except for the last
one where NACK bit will be returned (unless
master transmitter sends a STOP or Repeated
START condition before).
D8h Arbitration lost in
SLA =R/W as
master;
GeneralCall address
has been received;
ACK bit has been
returned.
NoI2CDAT action
or 0 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them.
No I2CDAT action 1 Total number of
bytes to be
received
X X 0 X 1 Upto BC[6:0] data bytes will be received, ACK bit
will be returned for all of them, except for the last
one where NACK bit will be returned (unless
master transmitter sends a STOP or Repeated
START condition before).