Philips Semiconductors
Product specification
Clock/calendar with 240 × 8-bit RAM
PCF8583
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from master
handbook, full pagewidth
SLAVE ADDRESS
DATA
S
SLAVE ADDRESS
0
A
WORD ADDRESS
A
S
1
A
A
n bytes
R/W
R/W
at this moment master -
transmitter becomes
auto increment
memory word address
master - receiver and
PCF8593 slave - receiver
becomes slave - transmitter
no acknowledgement
from master
P
DATA
1
last byte
auto increment
memory word address
MBD823
Fig.18 Master reads after setting word address (write word address; READ data).
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
handbook, full pagewidth
1
A
A
DATA
1
P
S
SLAVE ADDRESS
DATA
R/W
n bytes
last bytes
auto increment
word address
auto increment
word address
MBD824
Fig.19 Master reads slave immediately after first byte (READ mode).
1997 Jul 15
17
NXP [ NXP ]
