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Philips Semiconductors
2
I
C INTERFACE
Table 3: Master Receiver Mode(Continued)
Status
code
Status of the
2
(I2STAT)
I
C-bus hardware
SLA+R has been
transmitted; NOT
48h
ACK has been
received
Data byte has been
50h
received; ACK has
been returned
Data byte has been
58h
received; NACK has
been returned
Table 4: Slave Receiver Mode
Status
code
Status of the
2
(I2STAT)
I
C-bus hardware
Own SLA+W has
60H
been received; ACK
has been received
Arbitration lost in
SLA+R/Was
68H
master;Own SLA+W
has been received,
ACK returned
General call
address(00H) has
70H
beenreceived, ACK
has been returned
2003 Dec 8
Application software response
to/from I2DAT
STA
No I2DAT action or
1
no I2DAT action or
0
no I2DAT action or
1
Read data byte
0
read data byte
0
Read data byte or
1
read data byte or
0
read data byte
1
Application software response
to/from I2DAT
STA
no I2DAT action or
x
no I2DAT action
x
No I2DAT action or
x
no I2DAT action
x
No I2DAT action or
x
no I2DAT action
x
to I2CON
STO
SI
AA
0
0
x
1
0
x
1
0
x
0
0
0
0
0
1
0
0
x
1
0
x
1
0
x
to I2CON
STO
SI
AA
Data byte will be received and NOT ACK will
0
0
0
be returned
Data byte will be received and ACK will be
0
0
1
returned
Data byte will be received and NOT ACK will
0
0
0
be returned
Data byte will be received and ACK will be
0
0
1
returned
Data byte will be received and NOT ACK will
0
0
0
be returned
Data byte will be received and ACK will be
0
0
1
returned
74
User's Manual - Preliminary -
P89LPC920/921/922
Next action taken by I
hardware
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
Data byte will be received; NOT ACK
bit will be returned
Data byte will be received; ACK bit
will be returned
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
2
Next action taken by I
hardware
2
C
C
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