Manual

DS2740
11 of 15
Figure 10. NET ADDRESS COMMAND FLOW CHART
MASTER Tx
RESET PULSE
DS2740 Tx
PRESENCE PULSE
MASTER Tx NET
ADDRESS
COMMAND
55h
MATCH
33h / 39h
READ
F0h
SEARCH
CCh
SKIP
DS2740 Tx
FAMILY CODE
1 BYTE
DS2740 Tx
SERIAL NUMBER
6 BYTES
DS2740 Tx
CRC
1 BYTE
MASTER Tx
BIT 0
BIT 0
MATCH ?
MASTER Tx
BIT 1
DS2740 Tx BIT 0
DS2740 Tx BIT 0
MASTER Tx BIT 0
BIT 0
MATCH ?
DS2740 Tx BIT 1
DS2740 Tx BIT 1
MASTER Tx BIT 1
BIT 1
MATCH ?
BIT 1
MATCH ?
MASTER Tx
FUNCTION
COMMAND
MASTER Tx
BIT 63
DS2740 Tx BIT 63
DS2740 Tx BIT 63
MASTER Tx BIT 63
BIT 63
MATCH ?
MASTER Tx
FUNCTION
COMMAND
YES
NO NO NO
NO
YESYESYES
NO NO
NO NO
YESYES
YESYES
NO
YES
A5h
RESUME
YES
NO
RESUME
FLAG SET ?
MASTER Tx
FUNCTION
COMMAND
YES
NO
SET
RESUME
FLAG