PIC32MX440F256H-80I Datasheet, PDF (474/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
REGISTER 21-2: RTCALRM: RTC ALARM CONTROL REGISTER⁽¹⁾ (CONTINUED)
bit 11-8
AMASK<3:0>: Alarm Mask Configuration bits
0000 = Every half-second
0001 = Every second
0010 = Every 10 seconds
0011 = Every minute
0100 = Every 10 minutes
0101 = Every hour
0110 = Once a day
0111 = Once a week
1000 = Once a month
1001 = Once a year (except when configured for February 29th, once every 4 years)
1010 = Reserved – do not use
1011 = Reserved – do not use
11XX = Reserved – do not use
Note: This field should not be written when RTCCON = 1 (RTCCON<15>) and ALRMSYNC = 1.
bit 7-0
ARPT<7:0>: Alarm Repeat Counter Value bits
11111111 = Alarm will trigger 256 times
...
00000000 = Alarm will trigger 1 time
The counter decrements on any alarm event. The counter only rolls over from 00 to FF if CHIME = 1.
Note: This field should not be written when RTCCON = 1 (RTCCON<15>) and ALRMSYNC = 1.
Note 1: This register is only reset by POR.
DS61143E-page 472
Preliminary
© 2008 Microchip Technology Inc.