Datasheet

DS2780 Standalone Fuel Gauge IC
27 of 31
Figure 21. Net Address Command Flow Chart
MASTER TX
RESET PULSE
DS2780 Tx
PRESENCE PULSE
MASTER Tx NET
ADDRESS
COMMAND
55h
MATCH
33h / 39h
READ
F0h
SEARCH
CCh
SKIP
DS2780 Tx
FAMILY CODE
1 BYTE
DS2780 Tx
SERIAL NUMBER
6 BYTES
DS2780 Tx
CRC
1 BYTE
MASTER TX
BIT 0
BIT 0
MATCH ?
MASTER TX
BIT 1
DS2780 Tx BIT 0
DS2780 Tx BIT 0
MASTER Tx BIT 0
BIT 0
MATCH ?
DS2780 Tx BIT 1
DS2780 Tx BIT 1
MASTER Tx BIT 1
BIT 1
MATCH ?
BIT 1
MATCH ?
MASTER TX
FUNCTION
COMMAND
MASTER X T
BIT 63
DS2780 Tx BIT 63
DS2780 Tx BIT 63
MASTER Tx BIT 63
BIT 63
MATCH ?
MASTER TX
FUNCTION
COMMAND
YES
NO NO NO
NO
YESYES
NO NO
NO NO
YESYES
YES
YESYES
NO
YES
A5h
RESUME
YES
NO
RESUME
FLAG SET ?
MASTER TX
FUNCTION
COMMAND
YES
NO
SET
RESUME
FLAG
CLEAR RESUME
CLEAR RESUME
CLEAR RESUME