DSPIC33FJ128GP310A-I/PT Microchip Technology, DSPIC33FJ128GP310A-I/PT Datasheet - Page 135

IC DSPIC MCU/DSP 128K 100-TQFP

DSPIC33FJ128GP310A-I/PT

Manufacturer Part Number
DSPIC33FJ128GP310A-I/PT
Description
IC DSPIC MCU/DSP 128K 100-TQFP
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr
Datasheet

Specifications of DSPIC33FJ128GP310A-I/PT

Program Memory Type
FLASH
Program Memory Size
128KB (128K x 8)
Package / Case
100-TFQFP
Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
85
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 32x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Product
DSCs
Data Bus Width
16 bit
Processor Series
DSPIC33F
Core
dsPIC
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
85
Data Ram Size
16 KB
Maximum Operating Temperature
+ 85 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, DM240001, DV164033
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
876-1001 - DSPIC33 BREAKOUT BOARD
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 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.
 2009 Microchip Technology Inc.
Note:
Set the NSTDIS 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.
dsPIC33FJXXXGPX06A/X08A/X10A
Preliminary
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-level 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
DS70593B-page 135

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