PIC24FJ16GA002-E/ML Microchip Technology, PIC24FJ16GA002-E/ML Datasheet - Page 93

• Manufacturer Part Number: PIC24FJ16GA002-E/ML
• Description: IC PIC MCU FLASH 16K 28-QFN
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ16GA002-E/ML

• Program Memory Type: FLASH
• Program Memory Size: 16KB (5.5K x 24)
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• 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: 21
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 4 KB
• Interface Type: I2C, IrDA, SPI, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 5
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM240011, MA240013, AC164127, DM300027, DV164033, DM240002
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM240011 - KIT STARTER MPLAB FOR PIC24F MCUAC162088 - HEADER MPLAB ICD2 24FJ64GA004 28AC164336 - MODULE SOCKET FOR PM3 28/44QFNDV164033 - KIT START EXPLORER 16 MPLAB ICD2
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7.4
7.4.1
To configure an interrupt source:
1.
2.
3.
4.
7.4.2
The method that is used to declare an ISR and initialize
the IVT with the correct vector address will depend on
the programming language (i.e., ‘C’ or assembler) and
the language development toolsuite that is used to
develop the application. In general, the user must clear
the interrupt flag in the appropriate IFSx register for the
source of the interrupt that the ISR handles. Otherwise,
the ISR will be re-entered immediately after exiting the
routine. If the ISR is coded in assembly language, it
must be terminated using a RETFIE instruction to
unstack the saved PC value, SRL value and old CPU
priority level.
 2010 Microchip Technology Inc.
Note:
Set the NSTDIS Control bit (INTCON1<15>) if
nested interrupts are not desired.
Select the user-assigned priority level for the
interrupt source by writing the control bits in the
appropriate IPCx register. The priority level will
depend on the specific application and type of
interrupt source. If multiple priority levels are not
desired, the IPCx register control bits for all
enabled interrupt sources may be programmed
to the same non-zero value.
Clear the interrupt flag status bit associated with
the peripheral in the associated IFSx register.
Enable the interrupt source by setting the
interrupt enable control bit associated with the
source in the appropriate IECx register.
Interrupt Setup Procedures
INITIALIZATION
INTERRUPT SERVICE ROUTINE
At a device Reset, the IPCx registers are
initialized, such that all user interrupt
sources are assigned to priority level 4.
PIC24FJ64GA004 FAMILY
7.4.3
A Trap Service Routine (TSR) is coded like an ISR,
except that the appropriate trap status flag in the
INTCON1 register must be cleared to avoid re-entry
into the TSR.
7.4.4
All user interrupts can be disabled using the following
procedure:
1.
2.
To enable user interrupts, the POP instruction may be
used to restore the previous SR value.
Note that only user interrupts with a priority level of 7 or
less can be disabled. Trap sources (level 8-15) cannot
be disabled.
The DISI instruction provides a convenient way to
disable interrupts of priority levels 1-6 for a fixed period
of time. Level 7 interrupt sources are not disabled by
the DISI instruction.
Push the current SR value onto the software
stack using the PUSH instruction.
Force the CPU to priority level 7 by inclusive
ORing the value OEh with SRL.
TRAP SERVICE ROUTINE
INTERRUPT DISABLE
DS39881D-page 93