W91F810N Datasheet, PDF (14/26 Pages) Winbond – 23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

Volume Control Flow Chart, continied
W91F810N SERIES
Volume initial
data: V1 = 0, V2 = 0
No
Chip Enable
?
Yes
Hand-free
No
?
Yes
In handset mode
In hand-free mode
Press Vup or
Vdown keys
Yes
No
Volume setting
OK ?
Yes
No
Press hand-free
key ?
Press Vup or
Vdown keys
No
Volume setting
OK ?
Yes
Yes
Switch to
No
handset ?
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