參數(shù)資料
型號： TS80C51RD2-LCE
廠商： Atmel
文件頁數(shù)： 27/84頁
文件大?。?/td> 0K
描述： IC MCU 8BIT 768BYTE 30MHZ 44VQFP
標(biāo)準(zhǔn)包裝： 800
系列： 80C
核心處理器： 8051
芯體尺寸： 8-位
速度： 30/20MHz
連通性： UART/USART
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 32
程序存儲器類型： ROMless
RAM 容量： 768 x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
振蕩器型： 內(nèi)部
工作溫度： 0°C ~ 70°C
封裝/外殼： 44-QFP
包裝： 托盤
2007-2012 Microchip Technology Inc.
DS70292G-page 35
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
4.0
MEMORY ORGANIZATION
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 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.
4.1
Program Address Space
The program address memory space of the
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and
dsPIC33FJ128GPX02/X04
devices
is
4M
instructions. The space is addressable by a 24-bit
value derived either from the 23-bit Program Counter
(PC) during program execution, or from table operation
or data space remapping as described in Section 4.8
User application 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.
The memory map for the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 devices is shown in Figure 4-1.
FIGURE 4-1:
PROGRAM MEMORY MAP FOR dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, AND dsPIC33FJ128GPX02/X04 DEVICES
Note:
This data sheet summarizes the features
of
the
dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04,
and
dsPIC33FJ128GPX02/X04
families
of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 4. “Program
Memory” (DS70203) of the “dsPIC33F/
PIC24H Family Reference Manual”, which
(www.microchip.com).
Reset Address
0x000000
0x0000FE
0x000002
0x000100
Device Configuration
User Program
Flash Memory
(11264 instructions)
0x800000
0xF80000
Registers
0xF80017
0xF80018
DEVID (2)
0xFEFFFE
0xFF0000
0xFF0002
0xF7FFFE
Unimplemented
(Read ‘0’s)
GOTO Instruction
0x000004
Reserved
0x7FFFFE
Reserved
0x000200
0x0001FE
0x000104
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ32GP302/304
Co
nfi
gura
tio
n
Me
mory
S
pace
Us
er
Memory
S
pa
ce
Note:
Memory areas are not shown to scale.
Reset Address
Device Configuration
User Program
Flash Memory
(22016 instructions)
Registers
DEVID (2)
Unimplemented
(Read ‘0’s)
GOTO Instruction
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ64GPX02/X04
Reset Address
Device Configuration
User Program
Flash Memory
(44032 instructions)
Registers
DEVID (2)
Unimplemented
(Read ‘0’s)
GOTO Instruction
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ128GPX02/X04
0x0057FE
0x005800
0x015800
0x0157FE
0x00AC00
0x00ABFE
Reserved
0xFFFFFE
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