參數(shù)資料
型號: PIC16F77
廠商: Microchip Technology Inc.
英文描述: 40-Pin 8-Bit CMOS FLASH Microcontrollers(40腳、8位CMOS 閃速微控制器)
中文描述: 40引腳8位CMOS閃存微控制器(40腳,8位的CMOS閃速微控制器)
文件頁數(shù): 11/170頁
文件大?。?/td> 3150K
代理商: PIC16F77
2000 Microchip Technology Inc.
Advance Information
DS30325A-page 11
PIC16F7X
2.0
MEMORY ORGANIZATION
There are two memory blocks in each of these
PICmicro
MCUs. The Program Memory and Data
Memory have separate buses so that concurrent
access can occur and is detailed in this section. The
Program Memory can be read internally by user code
(see Section 4.0).
Additional information on device memory may be found
in the PICmicro
Mid-Range Reference Manual,
(DS33023).
2.1
Program Memory Organization
The PIC16F7X devices have a 13-bit program counter
capable of addressing an 8K x 14 program memory
space. The PIC16F77/76 devices have 8K x 14 words
of FLASH program memory and the PIC16F73/74
devices have 4K x 14. Accessing a location above the
physically implemented address will cause a wrap-
around.
The RESET Vector is at 0000h and the Interrupt Vector
is at 0004h.
FIGURE 2-1:
PIC16F77/76 PROGRAM
MEMORY MAP AND STACK
FIGURE 2-2:
PIC16F74/73 PROGRAM
MEMORY MAP AND STACK
PC<12:0>
13
0000h
0004h
0005h
Stack Level 1
Stack Level 8
Reset Vector
Interrupt Vector
On-Chip
Program
Memory
CALL, RETURN
RETFIE, RETLW
1FFFh
Stack Level 2
Page 0
Page 1
Page 2
Page 3
07FFh
0800h
0FFFh
1000h
17FFh
1800h
PC<12:0>
13
0000h
0004h
0005h
Stack Level 1
Stack Level 8
RESET Vector
Interrupt Vector
On-Chip
Program
Memory
CALL, RETURN
RETFIE, RETLW
1FFFh
Stack Level 2
Page 0
Page 1
07FFh
0800h
0FFFh
1000h
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