AC164139 Microchip Technology, AC164139 Datasheet - Page 289

• Manufacturer Part Number: AC164139
• Description: Graphics Display Prototype Board Graphics
• Manufacturer: Microchip Technology

Specifications of AC164139

• Main Purpose: LCD Development
• Embedded: No
• Utilized Ic / Part: PICtail™ Plus Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER 20-3:
 2010 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
R/W-0, HSC
ALRMEN
ARPT7
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
AMASK<3:0>: Alarm Mask Configuration bits
11xx = Reserved – do not use
101x = Reserved – do not use
1001 = Once a year (except when configured for February 29
1000 = Once a month
0111 = Once a week
0110 = Once a day
0101 = Every hour
0100 = Every 10 minutes
0011 = Every minute
0010 = Every 10 seconds
0001 = Every second
0000 = Every half second
ALRMPTR<1:0>: Alarm Value Register Window Pointer bits
Points to the corresponding Alarm Value registers when reading the ALRMVALH and ALRMVALL registers.
The ALRMPTR<1:0> value decrements on every read or write of ALRMVALH until it reaches ‘00’.
ALRMVAL<15:8>:
11 = Unimplemented
10 = ALRMMNTH
01 = ALRMWD
00 = ALRMMIN
ALRMVAL<7:0>:
11 = Unimplemented
10 = ALRMDAY
01 = ALRMHR
00 = ALRMSEC
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.
R/W-0, HSC
CHIME
ARPT6
R/W-0
CHIME = 0)
ALCFGRPT: ALARM CONFIGURATION REGISTER
HSC = Hardware Settable/Clearable bit
W = Writable bit
‘1’ = Bit is set
R/W-0, HSC
AMASK3
ARPT5
R/W-0
R/W-0, HSC
AMASK2
PIC24FJ256DA210 FAMILY
ARPT4
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0, HSC
AMASK1
ARPT3
R/W-0
R/W-0, HSC
AMASK0
th
ARPT2
R/W-0
, once every 4 years)
x = Bit is unknown
R/W-0, HSC
R/W-0, HSC
ALRMPTR1
ARPT1
DS39969B-page 289
R/W-0, HSC
R/W-0, HSC
ALRMPTR0
ARPT0
bit 8
bit 0