PIC24F16KA302-E/SP Microchip Technology, PIC24F16KA302-E/SP Datasheet - Page 82
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PIC24F16KA302-E/SP
Manufacturer Part Number
PIC24F16KA302-E/SP
Description
16KB Flash, 2KB RAM, 512B EEPROM, 16 MIPS, 12-bit ADC, CTMU, XLP 28 SPDIP .300in
Manufacturer
Microchip Technology
Series
PIC® XLP™ 24Fr
Datasheet
1.PIC24F16KA301T-ISO.pdf
(320 pages)
Specifications of PIC24F16KA302-E/SP
Core Processor
PIC
Core Size
16-Bit
Speed
32MHz
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Size
16KB (5.5K x 24)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 13x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.300", 7.62mm)
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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PIC24FV32KA304 FAMILY
8.3
The PIC24FV32KA304 family of devices implements a
total of 22 registers for the interrupt controller:
• INTCON1
• INTCON2
• IFS0, IFS1, IFS3 and IFS4
• IEC0, IEC1, IEC3 and IEC4
• IPC0 through IPC5, IPC7 and IPC15 through
• INTTREG
Global interrupt control functions are controlled from
INTCON1 and INTCON2. INTCON1 contains the
Interrupt Nesting Disable (NSTDIS) bit, as well as the
control and status flags for the processor trap sources.
The INTCON2 register controls the external interrupt
request signal behavior and the use of the AIV table.
The IFSx registers maintain all of the interrupt request
flags. Each source of interrupt has a status bit, which is
set by the respective peripherals, or external signal,
and is cleared via software.
The IECx registers maintain all of the interrupt enable
bits. These control bits are used to individually enable
interrupts from the peripherals or external signals.
The IPCx registers are used to set the interrupt priority
level for each source of interrupt. Each user interrupt
source can be assigned to one of eight priority levels.
DS39995B-page 82
IPC19
Interrupt Control and Status
Registers
The INTTREG register contains the associated
interrupt vector number and the new CPU interrupt
priority level, which are latched into the Vector Number
(VECNUM<6:0>) and the Interrupt Level (ILR<3:0>) bit
fields in the INTTREG register. The new interrupt
priority level is the priority of the pending interrupt.
The interrupt sources are assigned to the IFSx, IECx
and IPCx registers in the same sequence listed in
Table
is depicted as having a vector number and a natural
order priority of 0. The INT0IF status bit is found in
IFS0<0>, the INT0IE enable bit in IEC0<0> and the
INT0IP<2:0> priority bits are in the first position of IPC0
(IPC0<2:0>).
Although they are not specifically part of the interrupt
control hardware, two of the CPU control registers
contain bits that control interrupt functionality. The ALU
STATUS register (SR) contains the IPL<2:0> bits
(SR<7:5>). These indicate the current CPU interrupt
priority level. The user may change the current CPU
priority level by writing to the IPL bits.
The CORCON register contains the IPL3 bit, which
together with IPL<2:0>, also indicates the current CPU
priority level. IPL3 is a read-only bit so that the trap
events cannot be masked by the user’s software.
All interrupt registers are described in
through
8-2. For example, the INT0 (External Interrupt 0)
Register
8-33, in the following sections.
2011 Microchip Technology Inc.
Register 8-1
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