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Table 6. State transitions forced by an undervoltage condition
→ indicates the action that initiates a transaction; 1→ and 2 → indicated the consequences of a transaction.
Transition from Direction to
mode
mode
Normal
Sleep
Transition
number
28
Flag
UVVIO
→ set
UVVBAT
cleared
UVVCC
cleared
PWON
cleared
Wake
cleared
Note
[1]
Sleep
29
cleared
→ set
cleared
cleared
cleared
[1]
Standby
30
cleared
cleared
→ set
cleared
cleared
[1]
Receive-only
Sleep
31
→ set
cleared
cleared
X
1 → cleared
[1]
Sleep
32
cleared
→ set
cleared
X
1 → cleared
[1]
Standby
33
cleared
cleared
→ set
X
1 → cleared
[1]
Go-to-sleep
Sleep
34
→ set
cleared
cleared
X
1 → cleared
[1]
Sleep
35
cleared
→ set
cleared
X
1 → cleared
[1]
Standby
Sleep
36
→ set
cleared
X
X
1 → cleared
[1][2]
Sleep
37
cleared
→ set
X
X
1 → cleared
[1][3]
[1] UVVIO, UVVBAT or UVVCC detected clears the wake flag.
[2] UVVIO overrules UVVCC.
[3] UVVBAT overrules UVVCC.