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PIC16F737-I/SP 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:
DIP-28
描述:
MICROCHIP PIC16F737-I/SP 微控制器, 8位, 闪存, PIC16F, 20 MHz, 7 KB, 368 Byte, 28 引脚, NDIP
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PIC16F737-I/SP数据手册
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PIC16F7X7
DS30492B-page 4 2005 Microchip Technology Inc.
2.0 PROGRAM MODE ENTRY
2.1 User Program Memory Map
The user memory space extends from 0x0000 to
0x1FFF (8K), or 0x0000 to 0x0FFF (4K). Table 2-1
shows the actual implementation of program memory
in the PIC16F7X7 family. Configuration memory begins
at 0x2000, and continues to 0x3FFF. The PC will
increment from 0x0000 to 0x1FFF and wrap to 0x0000,
0x2000 to 0x3FFF and wrap around to 0x2000 (not to
0x0000).
Once in configuration memory, the highest bit of the PC
stays a ‘1’, thus always pointing to the configuration
memory. The only way to point to program memory is
to reset the part and re-enter Program/Verify mode, as
described in Section 2.3 “Program/Verify Mode”.
For PIC16F7X7 devices, configuration memory is
selected when the PC points to any address in the
range of 0x2000-0203F; however, only locations
0x2000 through 0x2008 are implemented. Addressing
locations beyond 0x203F will access program memory
(see Figure 2-1).
TABLE 2-1: IMPLEMENTATION OF
PROGRAM MEMORY IN THE
PIC16F7X7 FAMILY
2.2 ID Locations
A user may store identification information (ID) in four
ID locations mapped to [0x2000:0x2003]. It is
recommended that each ID location word is written as
‘11 1111 1000 bbbb’, where ‘bbbb’ is ID
information. The ID locations can be read after code
protection is enabled.
To understand the program memory read mechanism
after code protection is enabled, refer to Section 4.0
“Code Protection”. Table 4-1 shows specific
calculations and behavior for each of the PIC16F7X7
devices.
Device Program Memory Size
PIC16F737/747 0x0000-0x0FFF (4K)
PIC16F767/777 0x0000-0x1FFF (8K)
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