dsPIC33FJ32GP104-I/PT Microchip Technology, dsPIC33FJ32GP104-I/PT Datasheet - Page 241

• Manufacturer Part Number: dsPIC33FJ32GP104-I/PT
• Description: Digital Signal Processors & Controllers - DSP, DSC 16bit Gen Prp Fam16 MIPS 32KBFLSH 2KBRAM
• Manufacturer: Microchip Technology
• Type: dsPIC33FJ32(GP/MC)101/102/104r

Specifications of dsPIC33FJ32GP104-I/PT

• Rohs: yes
• Core: dsPIC33F
• Data Bus Width: 16 bit
• Program Memory Size: 32 KB
• Data Ram Size: 2 KB
• Maximum Clock Frequency: 7.37 MHz, 32 kHz
• Number Of Programmable I/os: 35
• Number Of Timers: 5 x 16-bit, 2 x 32-bit
• Device Million Instructions Per Second: 16 MIPs
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 125 C
• Package / Case: TQFP-44
• Mounting Style: SMD/SMT
• Family / Core: dsPIC33FJ32(GP/MC)101/102/104
• Interface Type: I2C, SPI, UART
• Minimum Operating Temperature: - 40 C
• On-chip Adc: Yes
• Product: DSPs
• Program Memory Type: Flash
• Supply Current: 10 mA

21.0
This chapter discusses the Real-Time Clock and
Calendar
on
dsPIC33FJ32(GP/MC)101/102/104 devices, and
its operation.
FIGURE 21-1:
 2011-2012 Microchip Technology Inc.
Note 1: This data sheet summarizes the features
dsPIC33FJ16(GP/MC)101/102 AND dsPIC33FJ32(GP/MC)101/102/104
32.768 kHz Input
from SOSC Oscillator
dsPIC33FJ16(GP/MC)101/102
2: Some registers and associated bits
REAL-TIME CLOCK AND
CALENDAR (RTCC)
of
and dsPIC33FJ32(GP/MC)101/102/104
device families of devices. It is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 37.
“Real-Time
(RTCC)”
“dsPIC33F/PIC24H Family Reference
Manual”, which is available on the
Microchip web site (www.microchip.com).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
(RTCC)
the
dsPIC33FJ16(GP/MC)101/102
RTCC BLOCK DIAGRAM
Alarm
Event
(DS70310)
Clock
RTCC Clock Domain
module,
Compare Registers
RTCC Prescalers
Repeat Counter
RTCC Timer
Comparator
with Masks
and
0.5s
in
Calendar
available
RTCC Interrupt Logic
the
and
in
CPU Clock Domain
Some of the key features of the RTCC module are:
• Time: hours, minutes and seconds
• 24-hour format (military time)
• Calendar: weekday, date, month and year
• Alarm configurable
• Year range: 2000 to 2099
• Leap year correction
• BCD format for compact firmware
• Optimized for low-power operation
• User calibration with auto-adjust
• Calibration range: ±2.64 seconds error per month
• Requirements: external 32.768 kHz clock crystal
• Alarm pulse or seconds clock output on RTCC pin
The RTCC module is intended for applications where
accurate time must be maintained for extended periods
of time with minimum to no intervention from the CPU.
The RTCC module is optimized for low-power usage to
provide extended battery lifetime while keeping track of
time.
The RTCC module is a 100-year clock and calendar
with automatic leap year detection. The range of the
clock is from 00:00:00 (midnight) on January 1, 2000 to
23:59:59 on December 31, 2099.
The hours are available in 24-hour (military time)
format. The clock provides a granularity of one second
with half-second visibility to the user.
ALCFGRPT
RCFGCAL
ALRMVAL
RTCVAL
RTCOE
Alarm Pulse
RTCC Interrupt
DS70652E-page 241
RTCC Pin