pca9665 NXP Semiconductors, pca9665 Datasheet - Page 35

• Manufacturer Part Number: pca9665
• Description: Fm+ Parallel Bus To I2c-bus Controller
• Manufacturer: NXP Semiconductors

Table 35.
Status
code
(I2CSTA)
28h
30h
38h
Master Transmitter Buffered mode (MODE = 1)
Status of the
I
PCA9665
BC[6:0] bytes in
I2CDAT have been
transmitted; ACK
has been received
for all of them
Up to BC[6:0] bytes
in I2CDAT have
been transmitted;
NACK has been
received for the last
byte
Arbitration lost in
SLA+W or
Data bytes
2
C-bus and the
Application software response
To/from I2CDAT
Load the data
bytes or
no I2CDAT action
or
no I2CDAT action
or
no I2CDAT action X
Load the data
bytes or
no I2CDAT action
or
no I2CDAT action
or
no I2CDAT action X
No I2CDAT
action or
No I2CDAT
action or
No I2CDAT
action
To I2CCOUNT
LB BC[6:0]
X
X
X
X
X
X
X
X
X
Total number of data
bytes to be
transmitted
X
X
X
Total number of data
bytes to be
transmitted
X
X
X
X
X
X
…continued
To I2CCON
STA STO SI
0
1
0
1
0
1
0
1
0
0
1
0
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AA MODE
X
X
X
X
X
X
X
X
0
1
X
1
1
1
1
1
1
1
1
1
1
1
Next action taken by the PCA9665
Up to BC[6:0] data bytes will be transmitted (until
all of them have been sent and an ACK has
been received for each of them or until a NACK
bit is received).
Repeated START will be transmitted.
STOP condition will be transmitted.
STO flag will be reset.
TOP condition followed by a START condition
will be transmitted.
STO flag will be reset.
Up to BC[6:0] data bytes will be transmitted (until
all of them have been sent and an ACK has
been received for each of them or until a NACK
bit is received).
Repeated START will be transmitted.
STOP condition will be transmitted.
STO flag will be reset.
STOP condition followed by a START condition
will be transmitted.
STO flag will be reset.
I
not addressed slave mode.
I
slave mode.
A START condition will be transmitted when the
bus becomes free.
2
2
C-bus will be released; PCA9665 will enter the
C-bus will be released; PCA9665 will enter the