PCA9564BS 查看數據表（PDF） - NXP Semiconductors.
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PCA9564BS Datasheet PDF : 32 Pages
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Philips Semiconductors
Parallel bus to I2C-bus controller
Product data sheet
PCA9564
Table 5. Slave Transmitter Mode
STATUS
CODE
(I2CSTA)
STATUS OF THE
I2C BUS AND
SIO HARDWARE
APPLICATION SOFTWARE RESPONSE
TO I2CCON
TO/FROM I2CDAT
STA STO SI AA
NEXT ACTION TAKEN BY SIO HARDWARE
A8H Own SLA+R has
Load data byte or
been received; ACK
has been returned
load data byte
X
X
0 0 Last data byte will be transmitted and ACK bit will be
received
X
X
0 1 Data byte will be transmitted; ACK will be received
B0H Arbitration lost in
Load data byte or
SLA+R/W as master;
Own SLA+R has
been received, ACK
load data byte
has been returned
X
X
0 0 Last data byte will be transmitted and ACK bit will be
received
X
X
0 1 Data byte will be transmitted; ACK bit will be
received
B8H Data byte in I2CDAT Load data byte or
has been transmitted;
ACK has been
load data byte
received
X
X
0 0 Last data byte will be transmitted and ACK bit will be
received
X
X
0 1 Data byte will be transmitted; ACK bit will be
received
C0H Data byte in I2CDAT No I2CDAT action
0
X
0 0 Switched to not addressed SLV mode; no recognition
has been transmitted; or
of own SLA
NOT ACK has been no I2CDAT action or 0
X
0 1 Switched to not addressed SLV mode; Own SLA will
received
be recognized
no I2CDAT action or 1
X
0 0 Switched to not addressed SLV mode; no recognition
of own SLA. A START condition will be transmitted
when the bus becomes free
no I2CDAT action
1
X
0 1 Switched to not addressed SLV mode; Own SLA will
be recognized. A START condition will be transmitted
when the bus becomes free.
C8H Last data byte in
No I2CDAT action
0
X
0 0 Switched to not addressed SLV mode; no recognition
I2CDAT has been
or
of own SLA
transmitted (AA = 0); no I2CDAT action or 0
X
0 1 Switched to not addressed SLV mode; Own SLA will
ACK has been
be recognized
received
no I2CDAT action or 1
X
0 0 Switched to not addressed SLV mode; no recognition
of own SLA. A START condition will be transmitted
when the bus becomes free
no I2CDAT action
1
X
0 1 Switched to not addressed SLV mode; Own SLA will
be recognized. A START condition will be transmitted
when the bus becomes free.
Table 6. Miscellaneous States
STATUS
CODE
(I2CSTA)
STATUS OF THE
I2C BUS AND
SIO HARDWARE
APPLICATION SOFTWARE RESPONSE
TO I2CCON
TO/FROM I2CDAT
STA STO SI AA
NEXT ACTION TAKEN BY SIO HARDWARE
F8H On reset or STOP
No I2CDAT action
1
X
0 X Go into master mode; send START
No I2CDAT action
0
X
0 0 No recognition of own SLA
No I2CDAT action
0
X
0 1 Will recognize own SLA
70H Bus error
SDA stuck LOW
90H Bus error
SCL stuck LOW
00H Bus error during
master or slave
mode, due to illegal
START or STOP
condition
Reset SIO (Requires reset to return to state F8H)
Reset SIO (Requires reset to return to state F8H)
Reset SIO (Requires reset to return to state F8H)
2006 Sep 01
14
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