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PIC16F676-E/SL 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SOIC-14
描述:
PIC16 系列 64 B RAM 1.75 kB 闪存 8位 CMOS 微控制器 - SOIC-14
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PIC16F676-E/SL数据手册
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若手册格式错乱，请下载阅览PDF原文件
PIC12F629/675/PIC16F630/676
DS41191D-page 4 © 2005 Microchip Technology Inc.
2.0 PROGRAM MODE ENTRY
2.1 User Program Memory Map
The user memory space extends from 0x0000-0x1FFF.
In Programming mode, the program memory space
extends from 0x0000-0x3FFF, the first half (0x0000-
0x1FFF) is user program memory and the second half
(0x2000-0x3FFF) is configuration memory. The PC will
increment from 0x0000-0x1FFF and wrap to 0x000,
0x2000-0x3FFF and wrap around to 0x2000 (not to
0x0000). Once in configuration memory, the highest bit
of the PC remains a ‘1’, thus always pointing to the
configuration memory. The only way to point to the user
program memory is to reset the part and re-enter
Program/Verify mode as described in Section 2.3
“Program/Verify Mode”.
In the configuration memory space, 0x2000-0x201F are
physically implemented. However, only locations 0x2000-
0x2003 and 0x2007 are available. Other locations are
reserved.
2.2 ID Locations
A user may store identification information (ID) in four ID
locations. The ID locations are mapped in [0x2000:
0x2003]. It is recommended that the user use only the
seven Least Significant bits (LSb) of each ID location.
Locations read out normally, even after code protection.
The ID locations read out in an unscrambled fashion
after code protection is enabled. It is recommended that
ID location is written as “xx xxxx xbbb bbbb” where
‘bbb bbbb’ is ID information.
The 14 bits may be programmed, but only the LSbs are
displayed by MPLAB
®
IDE. xxxx’s are “don’t care” bits
as they won’t be read by MPLAB
®
IDE.
FIGURE 2-1: PROGRAM MEMORY MAPPING
1FFF
2000
ID Location
ID Location
ID Location
ID Location
Reserved
Reserved
Reserved
Configuration Word
2008
3FFF
03FE
Implemented
1KW
Implemented
400
03FF
Implemented
03FF
OSCCAL
Maps to
0-3FF
Maps to
2000-201F
Reserved
201F
2000
2001
2002
2003
2004
2005
2006
2007
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