P89V660_0811 Datasheet, PDF (36/89 Pages) NXP Semiconductors – 8-bit 80C51 5 V low power 16 kB/32 kB/64 kB flash microcontroller with 512 B/1 kB/2 kB RAM, dual I2C-bus, SPI

NXP Semiconductors
P89V660/662/664
80C51 with 512 B/1 kB/2 kB RAM, dual I²C-bus, SPI
Table 24. Slave Receiver mode …continued
Status code
(S1STA)
Status of the
I²C-bus
hardware
Application software response
to/from S1DAT to S1CON
STA STO SI
88H
Previously
Read data byte or 0 0 0
addressed with
own SLA address;
Data has been _{read data byte}
0
0
0
received; NOT
ACK has been
or
returned.
read data byte 1 0 0
or
read data byte 1 0 0
90H
Previously
Read data byte or x 0 0
addressed with
General call; Data _{read data byte}
x
0
0
has been
received; ACK
has been
returned.
98H
Previously
Read data byte 0 0 0
addressed with
General call; Data
has been
read data byte 0 0 0
received; NOT
ACK has been
returned.
read data byte 1 0 0
read data byte 1 0 0
Next action taken by I²C-bus
hardware
AA
0 Switched to not addressed SLA
mode; no recognition of own SLA or
general address.
1 Switched to not addressed SLA
mode; Own SLA will be recognized;
general call address will be
recognized if S1ADR.0 = 1.
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.
1 Switched to not addressed SLA
mode; Own slave address will be
recognized; General call address
will be recognized if S1ADR.0 = 1. A
START condition will be transmitted
when the bus becomes free.
0 Data byte will be received and NOT
ACK will be returned.
1 Data byte will be received and ACK
will be returned.
0 Switched to not addressed SLA
mode; no recognition of own SLA or
General call address.
1 Switched to not addressed SLA
mode; Own slave address will be
recognized; General call address
will be recognized if S1ADR.0 = 1.
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.
1 Switched to not addressed SLA
mode; Own slave address will be
recognized; General call address
will be recognized if S1ADR.0 = 1. A
START condition will be transmitted
when the bus becomes free.
P89V660_662_664_3
Product data sheet
Rev. 03 — 10 November 2008
© NXP B.V. 2008. All rights reserved.
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