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dsPIC33F/PIC24H PROGRAMMING SPECIFICATION

TABLE 5-5:

Command

(Binary)

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

SERIAL INSTRUCTION EXECUTION FOR WRITING CODE MEMORY

Data

(Hex)

000000

000000

040200

000000

24001A

883B0A

200xx0

880190

2xxxx7

2xxxx0

2xxxx1

2xxxx2

2xxxx3

2xxxx4

2xxxx5

EB0300

000000

BB0BB6

000000

000000

BBDBB6

000000

000000

BBEBB6

000000

000000

BB1BB6

000000

000000

BB0BB6

000000

000000

BBDBB6

000000

000000

BBEBB6

000000

000000

BB1BB6

000000

000000

NOP

NOP

GOTO

NOP

MOV

MOV

MOV

MOV

MOV

MOV

MOV

MOV

MOV

MOV

MOV

Description

Step 1:

Exit the Reset vector.

0x200

Step 2:

Set the NVMCON to program 64 instruction words.

#0x4001, W10

W10, NVMCON

#<DestinationAddress23:16>, W0

W0, TBLPAG

#<DestinationAddress15:0>, W7

#<LSW0>, W0

#<MSB1:MSB0>, W1

#<LSW1>, W2

#<LSW2>, W3

#<MSB3:MSB2>, W4

#<LSW3>, W5

Step 3:

Initialize the write pointer (W7) for

TBLWT

instruction.

Step 4:

Initialize the read pointer (W6) and load W0:W5 with the next 4 instruction words to program.

Step 5:

Set the read pointer (W6) and load the (next set of) write latches.

CLR

W6

NOP

TBLWTL [W6++],

NOP

NOP

TBLWTH.B[W6++],

NOP

NOP

TBLWTH.B[W6++],

NOP

NOP

TBLWTL [W6++],

NOP

NOP

TBLWTL [W6++],

NOP

NOP

TBLWTH.B[W6++],

NOP

NOP

TBLWTH.B[W6++],

NOP

NOP

TBLWTL [W6++],

NOP

NOP

[W7]

[W7++]

[++W7]

[W7++]

[W7]

[W7++]

[++W7]

[W7++]

Step 6:

Repeat steps 4-5 sixteen times to load the write latches for 64 instructions.

Step 7:

Initiate the write cycle.

0000

0000

0000

A8E761

000000

000000

BSET

NOP

NOP

NVMCON, #WR

Step 8:

Wait for Row Program operation to complete and make sure WR bit is clear.

DS70152D-page 60

Preliminary

漏

2007 Microchip Technology Inc.

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