pca9665 NXP Semiconductors, pca9665 Datasheet - Page 24

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

NXP Semiconductors
Table 28.
PCA9665_2
Product data sheet
Status
code
(I2CSTA)
08h
10h
38h
40h
48h
50h
58h
Master Receiver Byte mode (MODE = 0)
Status of the
I
PCA9665
A START condition
has been
transmitted
A repeated START
condition has been
transmitted
Arbitration lost in
NACK bit
SLA+R has been
transmitted; ACK
has been received
SLA+R has been
transmitted; NACK
has been received
Data byte has been
received; ACK has
been returned
Data byte has been
received; NACK has
been returned
2
C-bus and the
Application software response
To/from I2CDAT
Load SLA+R
Load SLA+R or
Load SLA+W
No I2CDAT action
or
no I2CDAT action
No I2CDAT action
or
no I2CDAT action
No I2CDAT action
or
no I2CDAT action
or
no I2CDAT action
Read data byte or
read data byte
Read data byte or
read data byte or
read data byte
Rev. 02 — 7 December 2006
To I2CCON
STA STO SI
X
X
X
0
1
0
0
1
0
1
0
0
1
0
1
X
X
X
0
0
0
0
0
1
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AA MODE
X
X
X
X
X
0
1
X
X
X
0
1
X
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Fm+ parallel bus to I
Next action taken by the PCA9665
SLA+R will be transmitted;
ACK/NACK bit will be received
SLA+R will be transmitted;
ACK/NACK bit will be received
SLA+W will be transmitted;
PCA9665 will be switched to
Master Transmitter Byte mode
I
PCA9665 will enter a slave mode
A START condition will be
transmitted when the bus becomes
free
Data byte will be received;
NACK bit will be returned
Data byte will be received;
ACK bit will be returned
Repeated START condition 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
Data byte will be received;
NACK bit will be returned
Data byte will be received;
ACK bit will be returned
Repeated START condition 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
2
C-bus will be released;
PCA9665
© NXP B.V. 2006. All rights reserved.
2
C-bus controller
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