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參數(shù)資料
| 型號： | DSPIC30F5015-30I/PT |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 72/129頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DSPIC MCU/DSP 66K 64TQFP |
| 產(chǎn)品培訓(xùn)模塊： | dsPIC30F Quadrature Encoder Interface Serial Communications using dsPIC30F CAN Serial Communications using dsPIC30F I2C Serial Communications using dsPIC30F SPI Serial Communications using dsPIC30F UART dsPIC30F 12 bit ADC - Part 2 dsPIC30F Addressing Modes - Part 1 dsPIC30F Architecture - Part 1 dsPIC30F DSP Engine & ALU dsPIC30F Interrupts dsPIC30F Motor Control PWM dsPIC Timers Asynchronous Stimulus dsPIC30F Addressing Modes - Part 2 dsPIC30F Architecture - Part 2 dsPIC30F 12-bit ADC Part 1 |
| 標(biāo)準(zhǔn)包裝： | 160 |
| 系列： | dsPIC™ 30F |
| 核心處理器： | dsPIC |
| 芯體尺寸： | 16-位 |
| 速度： | 30 MIP |
| 連通性： | CAN，I²C，SPI，UART/USART |
| 外圍設(shè)備： | 高級欠壓探測/復(fù)位，電機控制 PWM，QEI，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 52 |
| 程序存儲器容量： | 66KB（22K x 24） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 1K x 8 |
| RAM 容量： | 2K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.5 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 16x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 64-TQFP |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 651 (CN2011-ZH PDF) |
| 配用： | XLT64PT5-ND - SOCKET TRAN ICE 64MQFP/TQFP AC164319-ND - MODULE SKT MPLAB PM3 64TQFP DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE |
| 其它名稱： | DSPIC30F501530IPT |
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2008 Microchip Technology Inc.
DS70149D-page 47
dsPIC30F5015/5016
5.4
Interrupt Sequence
All interrupt event flags are sampled in the beginning of
each instruction cycle by the IFSx registers. A pending
Interrupt Request (IRQ) is indicated by the flag bit
being equal to a ‘1’ in an IFSx register. The IRQ will
cause an interrupt to occur if the corresponding bit in
the Interrupt Enable (IECx) register is set. For the
remainder of the instruction cycle, the priorities of all
pending interrupt requests are evaluated.
If there is a pending IRQ with a priority level greater
than the current processor priority level in the IPL bits,
the processor will be interrupted.
The processor then stacks the current program counter
and the low byte of the processor STATUS register
(SRL), as shown in Figure 5-2. The low byte of the
STATUS register contains the processor priority level at
the time prior to the beginning of the interrupt cycle.
The processor then loads the priority level for this
interrupt into the STATUS register. This action will
disable all lower priority interrupts until the completion
of the Interrupt Service Routine.
FIGURE 5-2:
INTERRUPT STACK
FRAME
The RETFIE (Return from Interrupt) instruction will
unstack the program counter and STATUS registers to
return the processor to its state prior to the interrupt
sequence.
5.5
Alternate Vector Table
In program memory, the Interrupt Vector Table (IVT) is
followed by the Alternate Interrupt Vector Table (AIVT),
as shown in Figure 5-1. Access to the Alternate Vector
Table is provided by the ALTIVT bit in the INTCON2
register. If the ALTIVT bit is set, all interrupt and
exception processes will use the alternate vectors
instead of the default vectors. The alternate vectors are
organized in the same manner as the default vectors.
The AIVT supports emulation and debugging efforts by
providing a means to switch between an application
and a support environment, without requiring the
interrupt vectors to be reprogrammed. This feature also
enables switching between applications for evaluation
of different software algorithms at run time.
If the AIVT is not required, the program memory
allocated to the AIVT may be used for other purposes.
AIVT is not a protected section and may be freely
programmed by the user.
5.6
Fast Context Saving
A context saving option is available using shadow
registers. Shadow registers are provided for the DC, N,
OV, Z and C bits in SR, and the registers W0 through
W3. The shadows are only one level deep. The shadow
registers are accessible using the PUSH.S and POP.S
instructions only.
When the processor vectors to an interrupt, the
PUSH.S instruction can be used to store the current
value of the aforementioned registers into their
respective shadow registers.
If an ISR of a certain priority uses the PUSH.S and
POP.S instructions for fast context saving, then a
higher priority ISR should not include the same
instructions. Users must save the key registers in
software during a lower priority interrupt if the higher
priority ISR uses fast context saving.
5.7
External Interrupt Requests
The interrupt controller supports five external interrupt
request signals, INT0-INT4. These inputs are edge
sensitive; they require a low-to-high or a high-to-low
transition to generate an interrupt request. The
INTCON2 register has five bits, INT0EP-INT4EP, that
select the polarity of the edge detection circuitry.
5.8
Wake-up from Sleep and Idle
The interrupt controller may be used to wake-up the
processor from either Sleep or Idle mode, if Sleep or
Idle mode is active when the interrupt is generated.
If an enabled interrupt request of sufficient priority is
received by the interrupt controller, then the standard
interrupt request is presented to the processor. At the
same time, the processor will wake-up from Sleep or
Idle and begin execution of the Interrupt Service
Routine (ISR) needed to process the interrupt request.
Note 1: The user can always lower the priority level
by writing a new value into SR. The Interrupt
Service Routine must clear the interrupt flag
bits in the IFSx register before lowering the
processor interrupt priority in order to avoid
recursive interrupts.
2: The IPL3 bit (CORCON<3>) is always clear
when interrupts are being processed. It is
set only during execution of traps.
<Free Word>
0
15
W15 (before CALL)
W15 (after CALL)
S
tack
Grows
T
owards
Hig
her
Address
PUSH : [W15++]
POP
: [--W15]
0x0000
PC<15:0>
SRL IPL3 PC<22:16>
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| dsPIC30F5015T-20E/PT | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 20MIPS 66 KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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