参数资料
型号: DSPIC30F3013-30I/ML
厂商: Microchip Technology
文件页数: 80/161页
文件大小: 0K
描述: IC DSPIC MCU/DSP 24K 44QFN
产品培训模块: 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
标准包装: 45
系列: dsPIC™ 30F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 30 MIP
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 20
程序存储器容量: 24KB(8K x 24)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.5 V ~ 5.5 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: 44-VQFN 裸露焊盘
包装: 管件
产品目录页面: 651 (CN2011-ZH PDF)
配用: DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
其它名称: DSPIC30F301330IML
dsPIC30F2011/2012/3012/3013
DS70139G-page 20
2010 Microchip Technology Inc.
The core does not support a multi-stage instruction
pipeline. However, a single-stage instruction prefetch
mechanism is used, which accesses and partially
decodes instructions a cycle ahead of execution, in
order to maximize available execution time. Most
instructions execute in a single cycle with certain
exceptions.
The core features a vectored exception processing
structure for traps and interrupts, with 62 independent
vectors. The exceptions consist of up to 8 traps (of
which 4 are reserved) and 54 interrupts. Each interrupt
is prioritized based on a user-assigned priority between
1 and 7 (1 being the lowest priority and 7 being the
highest), in conjunction with a predetermined ‘natural
order’. Traps have fixed priorities ranging from 8 to 15.
2.2
Programmer’s Model
The programmer’s model is shown in Figure 2-1 and
consists of 16 x 16-bit working registers (W0 through
W15), 2 x 40-bit accumulators (ACCA and ACCB),
STATUS register (SR), Data Table Page register
(TBLPAG), Program Space Visibility Page register
(PSVPAG), DO and REPEAT registers (DOSTART,
DOEND, DCOUNT and RCOUNT) and Program Coun-
ter (PC). The working registers can act as data,
address or offset registers. All registers are memory
mapped. W0 acts as the W register for file register
addressing.
Some of these registers have a shadow register asso-
ciated with each of them, as shown in Figure 2-1. The
shadow register is used as a temporary holding register
and can transfer its contents to or from its host register
upon the occurrence of an event. None of the shadow
registers are accessible directly. The following rules
apply for transfer of registers into and out of shadows.
PUSH.S and POP.S
W0, W1, W2, W3, SR (DC, N, OV, Z and C bits
only) are transferred.
DO instruction
DOSTART, DOEND, DCOUNT shadows are
pushed on loop start and popped on loop end.
When a byte operation is performed on a working reg-
ister, only the Least Significant Byte (LSB) of the target
register is affected. However, a benefit of memory
mapped working registers is that both the Least and
Most Significant Bytes (MSB) can be manipulated
through byte-wide data memory space accesses.
2.2.1
SOFTWARE STACK POINTER/
FRAME POINTER
The dsPIC DSC devices contain a software stack.
W15 is the dedicated Software Stack Pointer (SP),
which
is
automatically
modified
by
exception
processing and subroutine calls and returns. However,
W15 can be referenced by any instruction in the same
manner as all other W registers. This simplifies the
reading, writing and manipulation of the Stack Pointer
(e.g., creating stack frames).
W15 is initialized to 0x0800 during a Reset. The user
may reprogram the SP during initialization to any
location within data space.
W14 has been dedicated as a Stack Frame Pointer, as
defined by the LNK and ULNK instructions. However,
W14 can be referenced by any instruction in the same
manner as all other W registers.
2.2.2
STATUS REGISTER
The dsPIC DSC core has a 16-bit STATUS register
(SR), the LSB of which is referred to as the SR Low
byte (SRL) and the MSB as the SR High byte (SRH).
See Figure 2-1 for SR layout.
SRL contains all the MCU ALU operation Status flags
(including the Z bit), as well as the CPU Interrupt
Priority Level Status bits, IPL<2:0>, and the Repeat
Active Status bit, RA. During exception processing,
SRL is concatenated with the MSB of the PC to form a
complete word value which is then stacked.
The upper byte of the STATUS register contains the
DSP Adder/Subtracter Status bits, the DO Loop Active
bit (DA) and the Digit Carry (DC) Status bit.
2.2.3
PROGRAM COUNTER
The program counter is 23 bits wide; bit 0 is always
clear. Therefore, the PC can address up to 4M
instruction words.
Note:
In order to protect against misaligned
stack accesses, W15<0> is always clear.
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