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P89C668 Datasheet(PDF) 26 Page - NXP Semiconductors

Part # P89C668
Description  80C51 8-bit Flash microcontroller family
PDF  89 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89C668 Datasheet(HTML) 26 Page - NXP Semiconductors

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Philips Semiconductors
Product data
P89C660/P89C662/P89C664/
P89C668
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
2002 Oct 28
26
Table 5.
Master Receiver Mode
STATUS
STATUS OF THE I2C
APPLICATION SOFTWARE RESPONSE
STATUS
CODE
(S1STA)
STATUS OF THE I2C
BUS AND
SIO1 HARDWARE
TO/FROM S1DAT
TO S1CON
NEXT ACTION TAKEN BY SIO1 HARDWARE
(S1STA)
SIO1 HARDWARE
TO/FROM S1DAT
STA
STO
SI
AA
08H
A START condition has
been transmitted
Load SLA+R
X
0
0
X
SLA+R will be transmitted;
ACK bit will be received
10H
A repeated START
diti
h
b
Load SLA+R or
X
0
0
X
As above
condition has been
transmitted
Load SLA+W
X
0
0
X
SLA+W will be transmitted;
SIO1 will be switched to MST/TRX mode
38H
Arbitration lost in
NOT ACK bit
No S1DAT action or
0
0
0
X
I2C bus will be released;
SIO1 will enter a Slave mode
No S1DAT action
1
0
0
X
A START condition will be transmitted when the
bus becomes free
40H
SLA+R has been
transmitted; ACK has
bi
d
No S1DAT action or
0
0
0
0
Data byte will be received;
NOT ACK bit will be returned
been received
no S1DAT action
0
0
0
1
Data byte will be received;
ACK bit will be returned
48H
SLA+R has been
t
itt d NOT ACK
No S1DAT action or
1
0
0
X
Repeated START condition will be transmitted
transmitted; NOT ACK
has been received
no S1DAT action or
0
1
0
X
STOP condition will be transmitted;
STO flag will be reset
no S1DAT action
1
1
0
X
STOP condition followed by a
START condition will be transmitted;
STO flag will be reset
50H
Data byte has been
received; ACK has been
d
Read data byte or
0
0
0
0
Data byte will be received;
NOT ACK bit will be returned
returned
read data byte
0
0
0
1
Data byte will be received;
ACK bit will be returned
58H
Data byte has been
i
d NOT ACK h
Read data byte or
1
0
0
X
Repeated START condition will be transmitted
received; NOT ACK has
been returned
read data byte or
0
1
0
X
STOP condition will be transmitted;
STO flag will be reset
read data byte
1
1
0
X
STOP condition followed by a
START condition will be transmitted;
STO flag will be reset



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