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PIC24FJ64GA 数据表(PDF) 17 Page - Microchip Technology

部件名 PIC24FJ64GA
功能描述  PIC24FJXXXGA0XX Flash Programming Specification
PDF  52 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

PIC24FJ64GA 数据表(HTML) 17 Page - Microchip Technology

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© 2008 Microchip Technology Inc.
DS39768D-page 17
PIC24FJXXXGA0XX
TABLE 3-4:
SERIAL INSTRUCTION EXECUTION FOR CHIP ERASE
Command
(Binary)
Data
(Hex)
Description
Step 1: Exit the Reset vector.
0000
0000
0000
000000
040200
000000
NOP
GOTO
0x200
NOP
Step 2: Set the NVMCON to erase all program memory.
0000
0000
2404FA
883B0A
MOV
#0x404F, W10
MOV
W10, NVMCON
Step 3: Set TBLPAG and perform dummy table write to select what portions of memory are erased.
0000
0000
0000
0000
0000
0000
200000
880190
200000
BB0800
000000
000000
MOV
#<PAGEVAL>, W0
MOV
W0, TBLPAG
MOV
#0x0000, W0
TBLWTL
W0,[W0]
NOP
NOP
Step 4: Initiate the erase cycle.
0000
0000
0000
A8E761
000000
000000
BSET
NVMCON, #WR
NOP
NOP
Step 5: Repeat this step to poll the WR bit (bit 15 of NVMCON) until it is cleared by the hardware.
0000
0000
0000
0000
0000
0001
0000
040200
000000
803B02
883C22
000000
<VISI>
000000
GOTO
0x200
NOP
MOV
NVMCON, W2
MOV
W2, VISI
NOP
Clock out contents of the VISI register.
NOP



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