PIC24FJ32GA004T-I/PT Microchip Technology, PIC24FJ32GA004T-I/PT Datasheet - Page 186
![32KB, Flash, 8192bytes-RAM, 16MIPS, 35I/O, 16-bit Family,nanoWatt 44 TQFP 10x10x](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC24FJ32GA004T-I/PT
Manufacturer Part Number
PIC24FJ32GA004T-I/PT
Description
32KB, Flash, 8192bytes-RAM, 16MIPS, 35I/O, 16-bit Family,nanoWatt 44 TQFP 10x10x
Manufacturer
Microchip Technology
Series
PIC® 24Fr
Datasheets
1.PIC24FJ16GA002-ISS.pdf
(52 pages)
2.PIC24FJ16GA002-ISS.pdf
(268 pages)
3.PIC24FJ16GA002-ISS.pdf
(22 pages)
Specifications of PIC24FJ32GA004T-I/PT
Core Processor
PIC
Core Size
16-Bit
Speed
32MHz
Connectivity
I²C, PMP, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
32KB (11K x 24)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DM240011 - KIT STARTER MPLAB FOR PIC24F MCUAC162088 - HEADER MPLAB ICD2 24FJ64GA004 28AC164335 - MODULE SKT FOR 10X10 PM3 44TQFPDV164033 - KIT START EXPLORER 16 MPLAB ICD2
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PIC24FJ32GA004T-I/PTTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC24FJ32GA004T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC24FJ32GA004T-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC24FJ16GA002-ISS PDF datasheet
- PIC24FJ16GA002-ISS PDF datasheet #2
- PIC24FJ16GA002-ISS PDF datasheet #3
- Current page: 186 of 268
- Download datasheet (2Mb)
PIC24FJ64GA004 FAMILY
19.3
• Configurable from half second to one year
• Enabled using the ALRMEN bit
• One-time alarm and repeat alarm options
19.3.1
The alarm feature is enabled using the ALRMEN bit.
This bit is cleared when an alarm is issued. Writes to
ALRMVAL should only take place when ALRMEN = 0.
As shown in Figure 19-2, the interval selection of the
alarm is configured through the AMASK bits
(ALCFGRPT<13:10>). These bits determine which and
how many digits of the alarm must match the clock
value for the alarm to occur.
The alarm can also be configured to repeat based on a
preconfigured interval. The amount of times this occurs
once the alarm is enabled is stored in the ARPT bits,
ARPT7:ARPT0 (ALCFGRPT<7:0>). When the value of
the ARPT bits equals 00h and the CHIME bit
(ALCFGRPT<14>) is cleared, the repeat function is
disabled and only a single alarm will occur. The alarm
can be repeated up to 255 times by loading
ARPT7:ARPT0 with FFh.
FIGURE 19-2:
DS39881D-page 186
(ALCFGRPT<15>, Register 19-3)
available
Alarm
Note 1:
0000 – Every half second
0001 – Every second
0010 – Every 10 seconds
0011 – Every minute
0100 – Every 10 minutes
0101 – Every hour
0110 – Every day
0111 – Every week
1000 – Every month
1001 – Every year
CONFIGURING THE ALARM
(AMASK3:AMASK0)
Alarm Mask Setting
Annually, except when configured for February 29.
ALARM MASK SETTINGS
(1)
Day of
Week
the
d
Month
m
m
After each alarm is issued, the value of the ARPT bits
is decremented by one. Once the value has reached
00h, the alarm will be issued one last time, after which
the ALRMEN bit will be cleared automatically and the
alarm will turn off.
Indefinite repetition of the alarm can occur if the CHIME
bit = 1. Instead of the alarm being disabled when the
value of the ARPT bits reaches 00h, it rolls over to FFh
and continues counting indefinitely while CHIME is set.
19.3.2
At every alarm event, an interrupt is generated. In addi-
tion, an alarm pulse output is provided that operates at
half the frequency of the alarm. This output is
completely synchronous to the RTCC clock and can be
used as a trigger clock to other peripherals.
Note:
d
d
Day
d
d
ALARM INTERRUPT
Changing any of the registers, other then
the RCFGCAL and ALCFGRPT registers
and the CHIME bit while the alarm is
enabled (ALRMEN = 1), can result in a
false alarm event leading to a false alarm
interrupt. To avoid a false alarm event, the
timer and alarm values should only be
changed while the alarm is disabled
(ALRMEN = 0). It is recommended that the
ALCFGRPT register and CHIME bit be
changed when RTCSYNC = 0.
Hours
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2010 Microchip Technology Inc.
Minutes
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Seconds
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