Datasheet

DS28E05 1-Wire EEPROM
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Figure 8. ROM Functions Flowchart
DS28E05 Tx
PRESENCE PULSE
BUS MASTER Tx
RESET PULSE
BUS MASTER Tx ROM
FUNCTION COMMAND
DS28E05 Tx
CRC BYTE
DS28E05 Tx
FAMILY CODE
(1 BYTE)
DS28E05 Tx
SERIAL NUMBER
(6 BYTES)
RC = 0
MASTER Tx BIT 0
RC = 0 RC = 0 RC = 0
YYY
Y
Y
Y
Y
33h
READ ROM
COMMAND?
N
55h
MATCH ROM
COMMAND?
BIT 0 MATCH? BIT 0 MATCH?
N
N N
N N
N N
F0h
SEARCH ROM
COMMAND?
N
CCh
SKIP ROM
COMMAND?
N
RC = 1
MASTER Tx BIT 1
MASTER Tx BIT 63
BIT 1 MATCH?
BIT 63 MATCH?
Y
Y
RC = 1
FROM MEMORY FUNCTION
FLOWCHART (FIGURE 6)
TO MEMORY FUNCTIONS
FLOWCHART (FIGURE 6)
DS28E05 Tx BIT 0
DS28E05 Tx BIT 0
MASTER Tx BIT 0
BIT 1 MATCH?
BIT 63 MATCH?
DS28E05 Tx BIT 1
DS28E05 Tx BIT 1
MASTER Tx BIT 1
DS28E05 Tx BIT 63
DS28E05 Tx BIT 63
MASTER Tx BIT 63
Y
RC = 1?
Y
A5h
RESUME
COMMAND?
N
N
Y
Y
MASTER Tx
RESET?
N