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参数资料
| 型号： | DSPIC33FJ32MC202T-I/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 47/76页 |
| 文件大小： | 0K |
| 描述： | IC DSC 16BIT 32KB FLASH 28SSOP |
| 标准包装： | 2,100 |
| 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，LIN，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，DMA，电机控制 PWM，QEI，POR，PWM，WDT |
| 输入/输出数： | 21 |
| 程序存储器容量： | 32KB（32K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 2K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 3 V ~ 3.6 V |
| 数据转换器： | A/D 6x10b/12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 包装： | 带卷 (TR) |
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2007-2012 Microchip Technology Inc.
DS70283K-page 51
dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
4.8
Interfacing Program and Data
Memory Spaces
The
dsPIC33FJ32MC202/204
and
dsPIC33FJ16MC304 architecture uses a 24-bit-wide
program space and a 16-bit-wide data space. The
architecture is also a modified Harvard scheme,
meaning that data can also be present in the program
space. To use this data successfully, it must be
accessed in a way that preserves the alignment of
information in both spaces.
Aside
from
normal
execution,
the
dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
architecture provides two methods by which program
space can be accessed during operation:
Using table instructions to access individual bytes
or words anywhere in the program space
Remapping a portion of the program space into
the data space (Program Space Visibility)
Table instructions allow an application to read or write
to small areas of the program memory. This capability
makes the method ideal for accessing data tables that
need to be updated periodically. It also allows access
to all bytes of the program word. The remapping
method allows an application to access a large block of
data on a read-only basis, which is ideal for look-ups
from a large table of static data. The application can
only access the least significant word of the program
word.
4.8.1
ADDRESSING PROGRAM SPACE
Since the address ranges for the data and program
spaces are 16 and 24 bits, respectively, a method is
needed to create a 23-bit or 24-bit program address
from 16-bit data registers. The solution depends on the
interface method to be used.
For table operations, the 8-bit Table Page register
(TBLPAG) is used to define a 32K word region within
the program space. This is concatenated with a 16-bit
EA to arrive at a full 24-bit program space address. In
this format, the Most Significant bit of TBLPAG is used
to determine if the operation occurs in the user memory
(TBLPAG<7> = 0) or the configuration memory
(TBLPAG<7> = 1).
For remapping operations, the 8-bit Program Space
Visibility register (PSVPAG) is used to define a
16K word page in the program space. When the Most
Significant bit of the EA is ‘1’, PSVPAG is concatenated
with the lower 15 bits of the EA to form a 23-bit program
space address. Unlike table operations, this limits
remapping operations strictly to the user memory area.
Table 4-28 and Figure 4-7 show how the program EA is
created for table operations and remapping accesses
from the data EA. Here, P<23:0> refers to a program
space word, and D<15:0> refers to a data space word.
TABLE 4-28:
PROGRAM SPACE ADDRESS CONSTRUCTION
Access Type
Access
Space
Program Space Address
<23>
<22:16>
<15>
<14:1>
<0>
Instruction Access
(Code Execution)
User
0
PC<22:1>
0
0xx
xxxx
xxxx xxx0
TBLRD/TBLWT
(Byte/Word Read/Write)
User
TBLPAG<7:0>
Data EA<15:0>
0xxx xxxx
xxxx xxxx xxxx xxxx
Configuration
TBLPAG<7:0>
Data EA<15:0>
1xxx xxxx
xxxx xxxx xxxx xxxx
Program Space Visibility
(Block Remap/Read)
User
0
PSVPAG<7:0>
Data EA<14:0>(1)
0
xxxx xxxx
xxx xxxx xxxx xxxx
Note 1: Data EA<15> is always ‘1’ in this case, but is not used in calculating the program space address. Bit 15 of
the address is PSVPAG<0>.
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| dsPIC33FJ32MC204-E/ML | 功能描述:数字信号处理器和控制器 - DSP, DSC 16B DSC 44LD32KB Motor40 MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| dsPIC33FJ32MC204-E/PT | 功能描述:数字信号处理器和控制器 - DSP, DSC 16B DSC 32KB Motor40 MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| DSPIC33FJ32MC204-E/PT | 制造商:Microchip Technology Inc 功能描述:IC DSC 16BIT 32KB 40MHZ 3.6V TQFP44 制造商:Microchip Technology Inc 功能描述:IC, DSC, 16BIT, 32KB 40MHZ, 3.6V, TQFP44 |
| dsPIC33FJ32MC204-H/ML | 功能描述:数字信号处理器和控制器 - DSP, DSC 16-bit 32KB Flash 40 MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| dsPIC33FJ32MC204-H/PT | 功能描述:数字信号处理器和控制器 - DSP, DSC 16-bit 32KB Flash 40 MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
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