參數(shù)資料
型號(hào): PCA9564
廠商: NXP Semiconductors N.V.
英文描述: Parallel bus to I2C-bus controller
中文描述: 并行總線I2C總線控制器
文件頁(yè)數(shù): 11/31頁(yè)
文件大?。?/td> 222K
代理商: PCA9564
Philips Semiconductors
Product data
PCA9564
Parallel bus to I
2
C-bus controller
2003 Apr 02
11
Table 2.
Master Transmitter Mode
APPLICATION SOFTWARE RESPONSE
STATUS
CODE
(I2CSTA)
STATUS OF THE
I
2
C BUS AND
SIO HARDWARE
TO I2CCON
NEXT ACTION TAKEN BY SIO HARDWARE
TO/FROM I2CDAT
STA
STO
SI
AA
08H
A START condition has
been transmitted
Load SLA+W
X
X
0
X
SLA+W will be transmitted;
ACK bit will be received
10H
A repeated START
condition has been
transmitted
Load SLA+W or
Load SLA+R
X
X
X
X
0
0
X
X
As above
SLA+R will be transmitted;
SIO will be switched to MST/REC mode
18H
SLA+W has been
transmitted; ACK has
been received
Load data byte or
0
0
0
X
Data byte will be transmitted;
ACK bit will be 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
no I2CDAT action or
no I2CDAT action or
1
0
0
1
0
0
X
X
no I2CDAT action
1
1
0
X
20H
SLA+W has been
transmitted; NOT ACK
has been received
Load data byte or
0
0
0
X
Data byte will be transmitted;
ACK bit will be 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
no I2CDAT action or
no I2CDAT action or
1
0
0
1
0
0
X
X
no I2CDAT action
1
1
0
X
28H
Data byte in I2CDAT
has been transmitted;
ACK has been received
Load data byte or
0
0
0
X
Data byte will be transmitted;
ACK bit will be 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
no I2CDAT action or
no I2CDAT action or
1
0
0
1
0
0
X
X
no I2CDAT action
1
1
0
X
30H
Data byte in I2CDAT
has been transmitted;
NOT ACK has been
received
Load data byte or
0
0
0
X
Data byte will be transmitted;
ACK bit will be 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
no I2CDAT action or
no I2CDAT action or
1
0
0
1
0
0
X
X
no I2CDAT action
1
1
0
X
38H
Arbitration lost in
SLA+W or
Data bytes
No I2CDAT action or
0
0
0
X
I
2
C-bus will be released;
not addressed slave will be entered
A START condition will be transmitted when the
bus becomes free (STOP or SCL and SDA high)
No I2CDAT action
1
0
0
X
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