P89C660 Просмотр технического описания (PDF) - Philips Electronics
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P89C660 Datasheet PDF : 89 Pages
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Philips Semiconductors
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
Product data
P89C660/P89C662/P89C664/
P89C668
Table 6. Slave Receiver mode (Continued)
STATUS
CODE
(S1STA)
STATUS OF THE
I2C BUS AND
SIO1 HARDWARE
APPLICATION SOFTWARE RESPONSE
TO S1CON
TO/FROM S1DAT
STA STO SI AA
NEXT ACTION TAKEN BY SIO1 HARDWARE
A0H A STOP condition or No STDAT action or 0
0
0 0 Switched to not addressed SLV mode; no recognition
repeated START
of own SLA or General call address
condition has been
No STDAT action or 0
0
0 1 Switched to not addressed SLV mode; Own SLA will
received while still
be recognized; General call address will be
addressed as
recognized if S1ADR.0 = logic 1
SLV/REC or SLV/TRX No STDAT action or 1
0
0 0 Switched to not addressed SLV mode; no recognition
of own SLA or General call address. A START
condition will be transmitted when the bus becomes
free
No STDAT action
1
0
0 1 Switched to not addressed SLV mode; Own SLA will
be recognized; General call address will be
recognized if S1ADR.0 = logic 1. A START condition
will be transmitted when the bus becomes free.
Table 7. Slave Transmitter mode
STATUS
CODE
(S1STA)
STATUS OF THE
I2C BUS AND
SIO1 HARDWARE
APPLICATION SOFTWARE RESPONSE
TO S1CON
TO/FROM S1DAT
STA STO SI AA
NEXT ACTION TAKEN BY SIO1 HARDWARE
A8H Own SLA+R has
Load data byte or
been received; ACK
has been returned
load data byte
X
0
0 0 Last data byte will be transmitted and ACK bit will be
received
X
0
0 1 Data byte will be transmitted; ACK will be received
B0H Arbitration lost in
Load data byte or
SLA+R/W as master;
Own SLA+R has
been received, ACK
has been returned
load data byte
X
0
0 0 Last data byte will be transmitted and ACK bit will be
received
X
0
0 1 Data byte will be transmitted; ACK bit will be received
B8H Data byte in S1DAT Load data byte or
has been transmitted;
ACK has been
received
load data byte
X
0
0 0 Last data byte will be transmitted and ACK bit will be
received
X
0
0 1 Data byte will be transmitted; ACK bit will be received
C0H Data byte in S1DAT No S1DAT action or 0
0
0 01 Switched to not addressed SLV mode; no recognition
has been transmitted;
of own SLA or General call address
NOT ACK has been no S1DAT action or 0
0
0 1 Switched to not addressed SLV mode; Own SLA will
received
be recognized; General call address will be
recognized if S1ADR.0 = logic 1
no S1DAT action or 1
0
0 0 Switched to not addressed SLV mode; no recognition
of own SLA or General call address. A START
condition will be transmitted when the bus becomes
free
no S1DAT action
1
0
0 1 Switched to not addressed SLV mode; Own SLA will
be recognized; General call address will be
recognized if S1ADR.0 = logic 1. A START condition
will be transmitted when the bus becomes free.
C8H Last data byte in
No S1DAT action or 0
0
0 0 Switched to not addressed SLV mode; no recognition
S1DAT has been
of own SLA or General call address
transmitted (AA = 0); no S1DAT action or 0
0
0 1 Switched to not addressed SLV mode; Own SLA will
ACK has been
be recognized; General call address will be
received
recognized if S1ADR.0 = logic 1
no S1DAT action or 1
0
0 0 Switched to not addressed SLV mode; no recognition
of own SLA or General call address. A START
condition will be transmitted when the bus becomes
free
no S1DAT action
1
0
0 1 Switched to not addressed SLV mode; Own SLA will
be recognized; General call address will be
recognized if S1ADR.0 = logic 1. A START condition
will be transmitted when the bus becomes free.
2002 Oct 28
28
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