PIC24FJ128GB MICROCHIP [Microchip Technology], PIC24FJ128GB Datasheet - Page 241
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PIC24FJ128GB
Manufacturer Part Number
PIC24FJ128GB
Description
64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC24FJ128GB.pdf
(328 pages)
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REGISTER 19-3:
© 2008 Microchip Technology Inc.
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14
bit 13-10
bit 9-8
bit 7-0
ALRMEN
ARPT7
R/W-0
R/W-0
ALRMEN: Alarm Enable bit
1 = Alarm is enabled (cleared automatically after an alarm event whenever ARPT<7:0> = 00h and
0 = Alarm is disabled
CHIME: Chime Enable bit
1 = Chime is enabled; ARPT<7:0> bits are allowed to roll over from 00h to FFh
0 = Chime is disabled; ARPT<7:0> bits stop once they reach 00h
AMASK3:AMASK0: 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)
101x = Reserved – do not use
11xx = Reserved – do not use
ALRMPTR1:ALRMPTR0: Alarm Value Register Window Pointer bits
Points to the corresponding Alarm Value registers when reading ALRMVALH and ALRMVALL registers;
the ALRMPTR<1:0> value decrements on every read or write of ALRMVALH until it reaches ‘00’.
ALRMVAL<15:8>:
00 = ALRMMIN
01 = ALRMWD
10 = ALRMMNTH
11 = Unimplemented
ALRMVAL<7:0>:
00 = ALRMSEC
01 = ALRMHR
10 = ALRMDAY
11 = Unimplemented
ARPT7:ARPT0: Alarm Repeat Counter Value bits
11111111 = Alarm will repeat 255 more times
...
00000000 = Alarm will not repeat
The counter decrements on any alarm event. The counter is prevented from rolling over from 00h to
FFh unless CHIME = 1.
CHIME
ARPT6
R/W-0
R/W-0
CHIME = 0)
ALCFGRPT: ALARM CONFIGURATION REGISTER
W = Writable bit
‘1’ = Bit is set
AMASK3
ARPT5
R/W-0
R/W-0
AMASK2
PIC24FJ256GB110 FAMILY
ARPT4
R/W-0
R/W-0
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
AMASK1
ARPT3
R/W-0
R/W-0
AMASK0
ARPT2
R/W-0
R/W-0
x = Bit is unknown
ALRMPTR1
ARPT1
R/W-0
R/W-0
DS39897B-page 239
ALRMPTR0
ARPT0
R/W-0
R/W-0
bit 8
bit 0
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