pca9665 NXP Semiconductors, pca9665 Datasheet - Page 34

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

Table 35.
Status
code
(I2CSTA)
08h
10h
18h
20h
Master Transmitter Buffered mode (MODE = 1)
Status of the
I
PCA9665
A START condition
has been
transmitted
A repeated START
condition has been
transmitted
SLA+W has been
transmitted; ACK
has been received
SLA+W has been
transmitted; NACK
has been received
2
C-bus and the
Application software response
To/from I2CDAT
Load SLA+W and
the data bytes
Load SLA+W and
the data bytes or
Load SLA+R
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 1
To I2CCOUNT
LB BC[6:0]
X
X
X
X
X
X
0
1
0
Total number of bytes
to be transmitted
(= SLA+W + number
of data bytes)
Total number of bytes
to be transmitted
(= SLA+W + number
of data bytes)
Total number of bytes
to be received
Total number of data
bytes to be
transmitted
X
X
X
Total number of data
bytes to be
transmitted
X
X
X
To I2CCON
STA STO SI
X
X
X
0
1
0
1
0
1
0
1
X
X
X
0
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
AA MODE
X
X
X
X
X
X
X
X
X
X
X
1
1
1
1
1
1
1
1
1
1
1
Next action taken by the PCA9665
SLA+W will be transmitted. If ACK bit received,
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.
SLA+W will be transmitted. If ACK bit received,
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.
SLA+R will be transmitted.
PCA9665 will be switched to Master Receiver
Buffered mode.
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.
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.