dsPIC33F Microchip Technology, dsPIC33F Datasheet - Page 63

• Manufacturer Part Number: dsPIC33F
• Description: (dsPIC24H / dsPIC33F) Flash Programming Specification
• Manufacturer: Microchip Technology

TABLE 5-8:
© 2007 Microchip Technology Inc.
Step 1: Exit the Reset vector.
Step 2: Initialize the write pointer (W7) for the TBLWT instruction.
Step 3: Set the NVMCON register to program one Configuration register.
Step 4: Initialize the TBLPAG register.
Step 5: Load the Configuration register data to W6.
Step 6: Write the Configuration register data to the write latch and increment the write pointer.
Step 7: Initiate the write cycle.
Step 8: Wait for the Configuration Register Write operation to complete and make sure WR bit is clear.
Step 9: Reset device internal PC.
Step 10: Repeat steps 5-9 until all twelve Configuration registers are written.
Command
(Binary)
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0001
0000
0000
-
dsPIC33F/PIC24H PROGRAMMING SPECIFICATION
SERIAL INSTRUCTION EXECUTION FOR WRITING CONFIGURATION REGISTERS
000000
000000
040200
000000
200007
24000A
883B0A
200F80
880190
2xxxx0
BB1B96
000000
000000
A8E761
000000
000000
807600
887840
000000
<VISI>
040200
000000
(Hex)
Data
-
NOP
NOP
GOTO
NOP
MOV
MOV
MOV
MOV
MOV
MOV
TBLWTL W0, [W7++]
NOP
NOP
BSET
NOP
NOP
Externally time ‘P20’ msec
Characteristics and Timing Requirements”) to allow suffi-
cient time for the Configuration Register Write operation to
complete.
MOV, NVMCON, W0
MOV
NOP
Clock out contents of VISI register. Repeat until the WR bit
is clear.
GOTO
NOP
W0, VISI
0x200
#0x0000, W7
#0x4000, W10
W10, NVMCON
#0xF8, W0
W0, TBLPAG
#<CONFIG_VALUE>, W0
NVMCON, #WR
0x200
Preliminary
Description
(see Section TABLE 8-1: “AC/DC
DS70152D-page 63