2007 Microchip Technology Inc.
Preliminary
DS70165E-page 39
dsPIC33F
3.0
MEMORY ORGANIZATION
The dsPIC33F architecture features separate program
and data memory spaces and buses. This architecture
also allows the direct access of program memory from
the data space during code execution.
3.1
Program Address Space
The program address memory space of the dsPIC33F
devices is 4M instructions. The space is addressable by a
24-bit value derived from either the 23-bit Program Counter
(PC) during program execution, or from table operation
or data space remapping as described in Section 3.6
User access to the program memory space is restricted
to the lower half of the address range (0x000000 to
0x7FFFFF). The exception is the use of TBLRD/TBLWT
operations, which use TBLPAG<7> to permit access to
the Configuration bits and Device ID sections of the
configuration memory space.
Memory maps for the dsPIC33F family of devices are
shown in Figure 3-1.
FIGURE 3-1:
PROGRAM MEMORY MAP FOR dsPIC33F FAMILY DEVICES
Note:
This data sheet summarizes the features
of this group of dsPIC33F devices. It is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the “dsPIC30F
Family Reference Manual” (DS70046).
Reset Address
0x000000
0x0000FE
0x000002
0x000100
Device Configuration
User Program
Flash Memory
0x00AC00
0x00ABFE
(22K instructions)
0x800000
0xF80000
Registers
0xF80017
0xF80010
DEVID (2)
0xFEFFFE
0xFF0000
0xFFFFFE
0xF7FFFE
Unimplemented
(Read ‘0’s)
GOTO
Instruction
0x000004
Reserved
0x7FFFFE
Reserved
0x000200
0x0001FE
0x000104
Alternate Vector Table
Reserved
Interrupt Vector Table
Reset Address
Device Configuration
Registers
DEVID (2)
Unimplemented
(Read ‘0’s)
GOTO
Instruction
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
Reset Address
Device Configuration
User Program
Flash Memory
(88K instructions)
Registers
DEVID (2)
GOTO
Instruction
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ64XXXXX
dsPIC33FJ128XXXXX
dsPIC33FJ256XXXXX
C
onf
igurat
ion
M
e
mor
y
S
p
ace
U
s
er
Mem
o
ry
Sp
ac
e
0x015800
0x0157FE
User Program
(44K instructions)
Flash Memory
(Read ‘0’s)
Unimplemented
0x02AC00
0x02ABFE
相关PDF资料
PIC16CR76T-I/SS IC PIC MCU 8KX14 28SSOP
PIC18F13K50-I/P IC PIC MCU FLASH 4KX16 20-PDIP
PIC16CR76T-I/SO IC PIC MCU 8KX14 28SOIC
PIC18LF24K22-I/MV IC PIC MCU 16KB FLASH 28UQFN
PIC18LF24K22-I/ML IC PIC MCU 16KB FLASH 28QFN
PIC16CR76T-I/ML IC PIC MCU 8KX14 28QFN
PIC16F627-04/P IC MCU FLASH 1KX14 COMP 18DIP
PIC18F45J10-I/ML IC PIC MCU FLASH 16KX16 44QFN
相关代理商/技术参数
PIC18F45K20-I/P 功能描述:8位微控制器 -MCU 32KB Flash 1536B RAM 25 I/O 8B RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F45K20-I/PT 功能描述:8位微控制器 -MCU 32KB Flash 1536B RAM 25 I/O 8B RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F45K20T-I/ML 功能描述:8位微控制器 -MCU 32KB Flash 1536B RAM 25 I/O 8B RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F45K20T-I/MLV01 制造商:Microchip Technology Inc 功能描述:
PIC18F45K20T-I/MV 功能描述:8位微控制器 -MCU 32KB FL 1536b RAM 8b Familynanowatt XLP RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F45K20T-I/PT 功能描述:8位微控制器 -MCU 32KB Flash 1536B RAM 25 I/O 8B RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F45K22-E/ML 功能描述:8位微控制器 -MCU 32KB Flash 1536B RAM 8B nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F45K22-E/MV 功能描述:8位微控制器 -MCU 32KB 1536b RAM 8bit familynanoWatt XLP RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT