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Philips Semiconductors
2
I
C INTERFACE
Table 4: Slave Receiver Mode(Continued)
Status
code
Status of the
2
(I2STAT)
I
C-bus hardware
Previously
addressed with
General call; Data
98H
has been received;
NACK has been
returned
A STOP condition or
repeated START
condition has been
A0H
received while still
addressed as SLA/
REC or SLA/TRX
2003 Dec 8
Application software response
to/from I2DAT
STA
Read data byte
0
read data byte
0
read data byte
1
read data byte
1
0
No I2DAT action
I2DAT action
no
0
I2DAT action
no
1
I2DAT action
no
1
to I2CON
STO
SI
AA
Switched to not addressed SLA mode; no
0
0
0
recognition of own SLA or General call
address
Switched to not addressed SLA mode; Own
slave address will be recognized; General
0
0
1
call address will be recognized if I2ADR.0=1.
Switched to not addressed SLA mode; no
recognition of own SLA or General call
address. A START condition will be
0
0
0
transmitted when the bus becomes free.
Switched to not addressed SLA mode; Own
slave address will be recognized; General
call address will be recognized if I2ADR.0=1.
0
0
1
A START condition will be transmitted when
the bus becomes free.
Switched to not addressed SLA mode; no
0
0
0
recognition of own SLA or General call
address
Switched to not addressed SLA mode; Own
slave address will be recognized; General
0
0
1
call address will be recognized if I2ADR.0=1.
Switched to not addressed SLA mode; no
recognition of own SLA or General call
address. A START condition will be
0
0
0
transmitted when the bus becomes free.
Switched to not addressed SLA mode; Own
slave address will be recognized; General
call address will be recognized if I2ADR.0=1.
0
0
1
A START condition will be transmitted when
the bus becomes free.
76
User's Manual - Preliminary -
P89LPC920/921/922
2
Next action taken by I
C
hardware
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