Datasheet

1-Wire Digital Thermometer with
Sequence Detect and PIO
DS28EA00
Maxim Integrated 15
TO FIGURE 9d
FROM FIGURE 9d
FROM FIGURE 9b
TO FIGURE 9b
DS28EA00 STARTS RECALL
EEPROM TO SCRATCHPAD
DS28EA00 SAMPLES
PIO PIN
*
*SEE THE COMMAND DESCRIPTION FOR THE EXACT TIMING OF THE PIO PIN SAMPLING AND UPDATING.
DS28EA00 UPDATES
PIO
*
*
BUS MASTER Tx NEW PIO
OUTPUT DATA BYTE
BUS MASTER Tx INVERTED NEW
PIO OUTPUT DATA BYTE
BUS MASTER Rx
PIO PIN STATUS
B8h
RECALL EEPROM?
N
Y
F5h
PIO ACCESS
READ?
A5h
PIO ACCESS
WRITE?
N
N
Y
RECALL
COMPLETED?
Y
N
N
MASTER Rx "0"s
MASTER Rx "1"s
MASTER Rx "1"s
N
MASTER Tx RESET?
Y N
N
Y
MASTER Tx RESET?
N
MASTER Tx RESET?
Y
TRANSMISSION
OK?
MASTER Tx RESET?
BUS MASTER Rx
CONFIRMATION AAh
BUS MASTER Rx "1"s
BUS MASTER Rx
PIO PIN STATUS
DS28EA00 SAMPLES
PIO PIN
Y
Y
Y
Figure 9c. Control Function Flowchart