PIC24FJ64GA004-I/PT Microchip Technology Inc., PIC24FJ64GA004-I/PT Datasheet - Page 47
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PIC24FJ64GA004-I/PT
Manufacturer Part Number
PIC24FJ64GA004-I/PT
Description
MCU, 16-Bit, 44-Pin, 64KB Flash, 8KB RAM, 35 I/O, Nanowatt
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC24FJ64GA004-IPT.pdf
(256 pages)
Specifications of PIC24FJ64GA004-I/PT
A/d Inputs
13 Channel, 10-Bit
Comparators
2
Cpu Speed
16 MIPS
Eeprom Memory
0 Bytes
Input Output
35
Interface
I2C/SPI/UART
Memory Capacity
64 Kbytes
Memory Type
Flash
Number Of Bits
16
Number Of Inputs
35
Number Of Pins
44
Package Type
44-pin TQFP
Programmable Memory
64K Bytes
Ram Size
8K Bytes
Speed
32 MHz
Timers
5-16-bit
Voltage, Range
2-3.6 V
Voltage, Rating
2-3.6 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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EXAMPLE 4-2:
EXAMPLE 4-3:
© 2007 Microchip Technology Inc.
; Set up NVMCON for row programming operations
; Set up a pointer to the first program memory location to be written
; program memory selected, and writes enabled
; Perform the TBLWT instructions to write the latches
; 0th_program_word
; 1st_program_word
;
; 63rd_program_word
2nd_program_word
MOV
MOV
MOV
MOV
MOV
MOV
MOV
TBLWTL
TBLWTH
MOV
MOV
TBLWTL
TBLWTH
MOV
MOV
TBLWTL
TBLWTH
•
•
•
MOV
MOV
TBLWTL
TBLWTH
DISI
MOV
MOV
MOV
MOV
BSET
BTSC
BRA
#5
#0x55, W0
W0, NVMKEY
#0xAA, W1
W1, NVMKEY
NVMCON, #WR
NVMCON, #15
$-2
#0x4001, W0
W0, NVMCON
#0x0000, W0
W0, TBLPAG
#0x6000, W0
#LOW_WORD_0, W2
#HIGH_BYTE_0, W3
W2, [W0]
W3, [W0++]
#LOW_WORD_1, W2
#HIGH_BYTE_1, W3
W2, [W0]
W3, [W0++]
#LOW_WORD_2, W2
#HIGH_BYTE_2, W3
W2, [W0]
W3, [W0++]
#LOW_WORD_31, W2
#HIGH_BYTE_31, W3
W2, [W0]
W3, [W0]
LOADING THE WRITE BUFFERS
INITIATING A PROGRAMMING SEQUENCE
PIC24FJ64GA004 FAMILY
Preliminary
; Block all interrupts with priority <7
; for next 5 instructions
; Write the 55 key
;
; Write the AA key
; Start the erase sequence
; and wait for it to be
; completed
;
; Initialize NVMCON
;
; Initialize PM Page Boundary SFR
; An example program memory address
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
DS39881B-page 45
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