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DSPIC33FJ32GP302TH/SP Datasheet(PDF) 282 Page - Microchip Technology

Part # DSPIC33FJ32GP302TH/SP
Description  High-Performance, 16-bit Digital Signal Controllers
PDF  403 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

DSPIC33FJ32GP302TH/SP Datasheet(HTML) 282 Page - Microchip Technology

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dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292D-page 282
Preliminary
 2009 Microchip Technology Inc.
REGISTER 24-3:
ALCFGRPT: ALARM CONFIGURATION REGISTER
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
ALRMEN
CHIME
AMASK<3:0>
ALRMPTR<1:0>
bit 15
bit 8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
ARPT<7:0>
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
ALRMEN: Alarm Enable bit
1
= Alarm is enabled (cleared automatically after an alarm event whenever ARPT<7:0> = 00h and
CHIME = 0)
0
= Alarm is disabled
bit 14
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
bit 13-10
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)
101x
= Reserved – do not use
11xx
= Reserved – do not use
bit 9-8
ALRMPTR<1:0>: 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
bit 7-0
ARPT<7:0>: 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.



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