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參數(shù)資料
| 型號(hào)： | DSPIC30F3013-20I/ML |
| 廠商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 110/161頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DSPIC MCU/DSP 24K 44QFN |
| 產(chǎn)品培訓(xùn)模塊： | 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： | 45 |
| 系列： | dsPIC™ 30F |
| 核心處理器： | dsPIC |
| 芯體尺寸： | 16-位 |
| 速度： | 20 MIPS |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 20 |
| 程序存儲(chǔ)器容量： | 24KB（8K x 24） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大小： | 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 10x12b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 44-VQFN 裸露焊盤 |
| 包裝： | 管件 |
| 配用： | DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2 DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32 |
| 其它名稱： | DSPIC30F301320IML |
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dsPIC30F2011/2012/3012/3013
DS70139G-page 38
2010 Microchip Technology Inc.
3.2.2
DATA SPACES
The X data space is used by all instructions and sup-
ports all addressing modes. There are separate read
and write data buses. The X read data bus is the return
data path for all instructions that view data space as
combined X and Y address space. It is also the X
address space data path for the dual operand read
instructions (MAC class). The X write data bus is the
only write path to data space for all instructions.
The X data space also supports Modulo Addressing for
all instructions, subject to Addressing mode restric-
tions. Bit-Reversed Addressing is only supported for
writes to X data space.
The Y data space is used in concert with the X data
space by the MAC class of instructions (CLR,
ED,
EDAC,
MAC,
MOVSAC,
MPY,
MPY.N
and MSC) to
provide two concurrent data read paths. No writes
occur across the Y bus. This class of instructions
dedicates two W register pointers, W10 and W11, to
always address Y data space, independent of X data
space, whereas W8 and W9 always address X data
space. Note that during accumulator write back, the
data address space is considered a combination of X
and Y data spaces, so the write occurs across the X
bus. Consequently, the write can be to any address in
the entire data space.
The Y data space can only be used for the data
prefetch operation associated with the MAC class of
instructions. It also supports Modulo Addressing for
automated circular buffers. Of course, all other
instructions can access the Y data address space
through the X data path as part of the composite linear
space.
The boundary between the X and Y data spaces is
defined as shown in Figure 3-7 and is not user
programmable. Should an EA point to data outside its
own assigned address space, or to a location outside
physical memory, an all zero word/byte is returned. For
example, although Y address space is visible by all
non-MAC instructions using any addressing mode, an
attempt by a MAC instruction to fetch data from that
space
using
W8
or
W9
(X
space
pointers)
returns 0x0000.
TABLE 3-2:
EFFECT OF INVALID
MEMORY ACCESSES
All Effective Addresses are 16 bits wide and point to
bytes within the data space. Therefore, the data space
address range is 64 Kbytes or 32K words.
3.2.3
DATA SPACE WIDTH
The core data width is 16 bits. All internal registers are
organized as 16-bit wide words. Data space memory is
organized in byte addressable, 16-bit wide blocks.
3.2.4
DATA ALIGNMENT
To
help
maintain
backward
compatibility
with
PIC MCU devices and improve data space memory
usage efficiency, the dsPIC30F instruction set supports
both word and byte operations. Data is aligned in data
memory and registers as words, but all data space EAs
resolve to bytes. Data byte reads read the complete
word that contains the byte, using the LSb of any EA to
determine which byte to select. The selected byte is
placed onto the LSB of the X data path (no byte
accesses are possible from the Y data path as the MAC
class of instruction can only fetch words). That is, data
memory and registers are organized as two parallel
byte wide entities with shared (word) address decode
but separate write lines. Data byte writes only write to
the corresponding side of the array or register which
matches the byte address.
As a consequence of this byte accessibility, all Effective
Address calculations (including those generated by the
DSP operations which are restricted to word-sized
data) are internally scaled to step through word-aligned
memory. For example, the core would recognize that
Post-Modified Register Indirect Addressing mode
[Ws++] results in a value of Ws + 1 for byte operations
and Ws + 2 for word operations.
All word accesses must be aligned to an even address.
Misaligned word data fetches are not supported, so
care should be taken when mixing byte and word
operations, or translating from 8-bit MCU code. Should
a misaligned read or write be attempted, an address
error trap is generated. If the error occurred on a read,
the instruction underway is completed, whereas if it
occurred on a write, the instruction is executed, but the
write does not occur. In either case, a trap is then
executed, allowing the system and/or user to examine
the machine state prior to execution of the address
fault.
FIGURE 3-9:
DATA ALIGNMENT
Attempted Operation
Data Returned
EA = an unimplemented address
0x0000
W8 or W9 used to access Y data
space in a MAC instruction
0x0000
W10 or W11 used to access X
data space in a MAC instruction
0x0000
15
8 7
0
0001
0003
0005
0000
0002
0004
Byte 1
Byte 0
Byte 3
Byte 2
Byte 5
Byte 4
LSB
MSB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSPIC30F3013-30I/ML | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Sensor RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)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 |
| DSPIC30F3013-30I/SO | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Sensor RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)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 |
| DSPIC30F3013-30I/SO | 制造商:Microchip Technology Inc 功能描述:IC DSC 16BIT 24KB 40MHZ 5.5V SOIC-28 |
| DSPIC30F3013-30I/SP | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Sensor RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)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 |
| DSPIC30F3013-30I/SP | 制造商:Microchip Technology Inc 功能描述:16-Bit Digital Signal Controller |
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