参数资料
型号: DSPIC33FJ12GP202-I/SP
厂商: Microchip Technology
文件页数: 10/90页
文件大小: 0K
描述: IC DSPIC MCU/DSP 12K 28DIP
产品培训模块: Asynchronous Stimulus
标准包装: 15
系列: dsPIC™ 33F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 40 MIP
连通性: I²C,IrDA,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 21
程序存储器容量: 12KB(12K x 8)
程序存储器类型: 闪存
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 10x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 28-DIP(0.300",7.62mm)
包装: 管件
配用: AC164337-ND - MODULE SOCKET FOR PM3 40DIP
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
dsPIC33F
DS70155C-page 16
Preliminary
2005 Microchip Technology Inc.
5.0
EXCEPTION PROCESSING
The dsPIC33F has four processor exceptions (traps)
and up to 67 sources of interrupts, which must be
arbitrated based on a priority scheme.
The processor core is responsible for reading the
Interrupt Vector Table (IVT) and transferring the
address contained in the interrupt vector to the
program counter.
The Interrupt Vector Table (IVT) and Alternate Interrupt
Vector Table (AIVT) are placed near the beginning of
program memory (0x000004) for ease of debugging.
The interrupt controller hardware pre-processes the
interrupts before they are presented to the CPU.
The interrupts and traps are enabled, prioritized and
controlled using centralized Special Function Registers.
Each individual interrupt source has its own vector
address and can be individually enabled and prioritized
in user software. Each interrupt source also has its own
status flag. This independent control and monitoring of
the interrupt eliminates the need to poll various status
flags to determine the interrupt source
Table 5-1 contains information about the interrupt
vector.
Certain interrupts have specialized control bits for
features like edge or level triggered interrupts, interrupt-
on-change, etc. Control of these features remains within
the peripheral module, which generates the interrupt.
The special DISI instruction can be used to disable
the processing of interrupts of priorities 6 and lower for
a certain number of instruction cycles, during which
the DISI bit remains set.
TABLE 5-1:
INTERRUPT VECTORS
Vector
Number
IVT Address
AIVT Address
Interrupt Source
8
0x000014
0x000114
INT0 – External Interrupt 0
9
0x000016
0x000116
IC1 – Input Compare 1
10
0x000018
0x000118
OC1 – Output Compare 1
11
0x00001A
0x00011A
T1 – Timer1
12
0x00001C
0x00011C
DMA0 – DMA Channel 0
13
0x00001E
0x00011E
IC2 – Input Capture 2
14
0x000020
0x000120
OC2 – Output Compare 2
15
0x000022
0x000122
T2 – Timer2
16
0x000024
0x000124
T3 – Timer3
17
0x000026
0x000126
SPI1E – SPI1 Error
18
0x000028
0x000128
SPI1D – SPI1 Transfer Done
19
0x00002A
0x00012A
U1RX – UART1 Receiver
20
0x00002C
0x00012C
U1TX – UART1 Transmitter
21
0x00002E
0x00012E
ADC1 – A/D Converter 1
22
0x000030
0x000130
DMA1 – DMA Channel 1
23
0x000032
0x000132
Reserved
24
0x000034
0x000134
I2C1D – I2C1 Transfer Done
25
0x000036
0x000136
I2C1E – I2C1 Bus Collision Error
26
0x000038
0x000138
Reserved
27
0x00003A
0x00013A
Change Notification Interrupt
28
0x00003C
0x00013C
INT1 – External Interrupt 1
29
0x00003E
0x00013E
ADC2 – A/D Converter 2
30
0x000040
0x000140
IC7 – Input Capture 7
31
0x000042
0x000142
IC8 – Input Capture 8
32
0x000044
0x000144
DMA2 – DMA Channel 2
33
0x000046
0x000146
OC3 – Output Compare 3
34
0x000048
0x000148
OC4 – Output Compare 4
35
0x00004A
0x00014A
T4 – Timer4
36
0x00004C
0x00014C
T5 – Timer5
37
0x00004E
0x00014E
INT2 – External Interrupt 2
38
0x000050
0x000150
U2RX – UART2 Receiver
39
0x000052
0x000152
U2TX – UART2 Transmitter
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