Specifications

122
3706C–MICRO–2/11
AT89LP3240/6440
Figure 18-13. Format and States in Slave Receiver Mode
88h
Previously addressed with
own SLA+W; data has been
received; NOT ACK has
been returned
Read data byte 0 0 1 0
Switched to the not addressed Slave mode; no
recognition of own SLA or GCA
Read data byte 0 0 1 1
Switched to the not addressed Slave mode;
own SLA will be recognized; GCA will be
recognized if GC = “1”
Read data byte 1 0 1 0
Switched to the not addressed Slave mode; no
recognition of own SLA or GCA; a S
TA RT
condition will be transmitted when the bus
becomes free
Read data byte 1 0 1 1
Switched to the not addressed Slave mode;
own SLA will be recognized; GCA will be
recognized if GC = “1”; a START condition will
be transmitted when the bus becomes free
90h
Previously addressed with
general call; data has been
received; ACK has been
returned
Read data byte X 0 1 0
Data b
yte will be received and NOT ACK will be
returned
Read data byte X 0 1 1
Data byte will be received and ACK will be
returned
98h
Previously addressed with
general call; data has been
received; NOT ACK has
been returned
Read data byte 0 0 1 0
Switched to the not addressed Slave mode; no
recognition of own SLA or GCA
Read data byte 0 0 1 1
Switched to the not address
ed Slave mode;
own SLA will be recognized; GCA will be
recognized if GC = “1”
Read data byte 1 0 1 0
Switched to the not addressed Slave mode; no
recognition of own SLA or GCA; a START
condition will be transmitted when the bus
becomes free
Read data byte 1 0 1 1
Switched to the not addressed Slave mode;
own SLA will be recognized; GCA will be
recognized if GC = “1”; a START condition will
be transmitted when the bus becomes free
A0h
A STOP condition or
repea
ted START condition
has been received while still
addressed as slave
No Action 0 0 1 0
Switched to the not addressed Slave mode; no
recognition of own SLA or GCA
No Action 0 0 1 1
Switched to the not addressed Slave mode;
own SLA will be recognized; GCA will be
recognized if GC = “1”
No Action 1 0 1 0
Switched to the not addressed Slave mode; no
recognition of own SLA or GCA; a START
condition will be transmitted when the bus
becomes free
No Action 1 0 1 1
Switched to the not addressed Slave mode;
own SLA will be recognized; GCA will b
e
recognized if GC = “1”; a START condition will
be transmitted when the bus becomes free
Table 18-8. Status Codes for Slave Receiver Mode
S SLA W A DATA A
60h 80h
88h
A
Reception of the own
slave address and one or
more data bytes. All are
acknowledged
Last data byte received
is not acknowledged
Arbitration lost as master
and addressed as slave
P or SDATA A
80h
A0h
P or SA