Philips P89LPC938 User Manual page 88

Philips Semiconductors
Table 85: Slave Receiver mode
Status code Status of the I
(I2STAT) hardware
88H Previously
addressed with
own SLA address;
Data has been
received; NACK
has been returned
90H Previously
addressed with
General call; Data
has been
received; ACK
has been returned
98H Previously
addressed with
General call; Data
has been
received; NACK
has been returned
User manual
...continued
2
C Application software response
to/from I2DAT to I2CON
STA
Read data byte or 0
read data byte 0
or
read data byte 1
or
read data byte 1
Read data byte or x
read data byte x
Read data byte 0
read data byte 0
read data byte 1
read data byte 1
Rev. 03 — 7 June 2005
Next action taken by I
STO SI AA
0 0 0 Switched to not addressed SLA
mode; no recognition of own SLA or
general address
0 0 1 Switched to not addressed SLA
mode; Own SLA will be recognized;
general call address will be
recognized if I2ADR.0 = 1
0 0 0 Switched to not addressed SLA
mode; no recognition of own SLA or
General call address. A START
condition will be transmitted when
the bus becomes free
0 0 1 Switched to not addressed SLA
mode; Own slave address will be
recognized; General call address
will be recognized if I2ADR.0 = 1. A
START condition will be transmitted
when the bus becomes free.
0 0 0 Data byte will be received and NOT
ACK will be returned
0 0 1 Data byte will be received and ACK
will be returned
0 0 0 Switched to not addressed SLA
mode; no recognition of own SLA or
General call address
0 0 1 Switched to not addressed SLA
mode; Own slave address will be
recognized; General call address
will be recognized if I2ADR.0 = 1.
0 0 0 Switched to not addressed SLA
mode; no recognition of own SLA or
General call address. A START
condition will be transmitted when
the bus becomes free.
0 0 1 Switched to not addressed SLA
mode; Own slave address will be
recognized; General call address
will be recognized if I2ADR.0 = 1. A
START condition will be transmitted
when the bus becomes free.
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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P89LPC938 User manual
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C hardware
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