Datasheet 搜索 > 8位微控制器 > Microchip（微芯） > PIC16C715-20I/P 数据手册 > PIC16C715-20I/P 用户编程技术手册 2/14 页
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PIC16C715-20I/P 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
8位微控制器
封装:
PDIP-18
描述:
MICROCHIP PIC16C715-20I/P 微控制器, 8位, 一次性可编程, PIC16C, 20 MHz, 3.5 KB, 128 Byte, 18 引脚, DIP
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PIC16C715-20I/P数据手册
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PIC16C7XX
DS30298D-page 2 Preliminary 2002 Microchip Technology Inc.
2.0 PROGRAM MODE ENTRY
2.1 User Program Memory Map
The user memory space extends from 0x0000 to
0x1FFF (8K). Table 2-1 shows actual implementation
of program memory in the PIC16C7XX family.
TABLE 2-1: IMPLEMENTATION OF
PROGRAM MEMORY IN THE
PIC16C7XX
When the PC reaches the last location of the imple-
mented program memory, it will wrap around and
address a location within the physically implemented
memory (see Figure 2-1).
In Programming mode, the program memory space
extends from 0x0000 to 0x3FFF, with the first half
(0x0000-0x1FFF) being user program memory and the
second half (0x2000-0x3FFF) being configuration
memory. The PC will increment from 0x0000 to 0x1FFF
and wrap to 0x000, or 0x2000 to 0x3FFF and wrap
around to 0x2000 (not to 0x0000). Once in configura-
tion memory, the highest bit of the PC stays a ’1’, thus
always pointing to the configuration memory. The only
way to point to user program memory is to reset the
part and reenter Program/Verify mode, as described in
Section 2.2.
In the configuration memory space, 0x2000-0x207F or
0x2000-0x20FF are utilized. When in a configuration
memory, as in the user memory, the 0x2000-0x2XFF
segment is repeatedly accessed as PC exceeds
0x2XFF (Figure 2-1).
A user may store identification information (ID) in four
ID locations. The User ID locations are mapped in
[0x2000: 0x2003]. These locations read out normally
even after the code protection is enabled.
Note 1: All other locations in PICmicro
®
MCU con-
figuration memory are reserved and should
not be programmed.
2: Only the low order 4 bits of the User ID loca-
tions may be included in the device check-
sum. See Section 3.3.1 for checksum
calculation details.
Device
Program Memory
Size
PIC16C717 0x000 – 0x7FF (2K)
PIC16C770 0x000 – 0x7FF (2K)
PIC16C771 0x000 – 0xFFF (4K)
PIC16C781 0x000 – 0x3FF (1K)
PIC16C782 0x000 – 0x7FF (2K)
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