PIC32MX440F256H-80I Datasheet, PDF (490/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
21.8 Updating the Alarm Registers
The following flowchart explains in detail the steps that
have to be performed in order to update the
ALRMTIME, ALRMDATE and RTCALRM registers.
Updating the ALRMTIME, ALRMDATE or RTCALRM registers logic flow
Start
No
RTCC.ON?
Yes
Wait RTCC clock off.
W hile(A LR M S Y N C );
di
Write RTCALRM,
A LR M T IM E ,
ALRMDATE
ALRMSYNC?
Yes
ei
No
Write RTCALRM,
A LR M T IM E ,
ALRMDATE
ei
End
DS61143E-page 488
Preliminary
© 2008 Microchip Technology Inc.