PIC24FJ64GA002-I/SO Microchip Technology Inc., PIC24FJ64GA002-I/SO Datasheet - Page 48

• Manufacturer Part Number: PIC24FJ64GA002-I/SO
• Description: MCU, 16-Bit, 28-Pin, 64KB Flash, 8KB RAM, 21 I/O, Nanowatt
• Manufacturer: Microchip Technology Inc.

Specifications of PIC24FJ64GA002-I/SO

• A/d Inputs: 10 Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 16 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 21
• Interface: I2C/SPI/UART
• Memory Capacity: 64 Kbytes
• Memory Type: Flash
• Number Of Bits: 16
• Number Of Inputs: 21
• Number Of Pins: 28
• Package Type: 28-pin SOIC
• 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

PIC24FJ64GA004 FAMILY
4.6.2
If a Flash location has been erased, it can be pro-
grammed using table write instructions to write an
instruction word (24-bit) into the write latch. The
TBLPAG register is loaded with the 8 Most Significant
Bytes of the Flash address. The TBLWTL and TBLWTH
EXAMPLE 4-4:
DS39881B-page 46
; Setup a pointer to data Program Memory
; Setup NVMCON for programming one word to data Program Memory
MOV
MOV
MOV
MOV
MOV
TBLWTL W2, [W0]
TBLWTH W3, [W0++]
MOV
MOV
DISI
MOV
MOV
MOV
MOV
BSET
PROGRAMMING A SINGLE WORD
OF FLASH PROGRAM MEMORY
#tblpage(PROG_ADDR), W0
W0, TBLPAG
#tbloffset(PROG_ADDR), W0
#LOW_WORD_N, W2
#HIGH_BYTE_N, W3
#0x4003, W0
W0, NVMCON
#5
#0x55, W0
W0, NVMKEY
#0xAA, W0
W0, NVMKEY
NVMCON, #WR
PROGRAMMING A SINGLE WORD OF FLASH PROGRAM MEMORY
Preliminary
;
;Initialize PM Page Boundary SFR
;Initialize a register with program memory address
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
;
; Set NVMOP bits to 0011
; Disable interrupts while the KEY sequence is written
; Write the key sequence
; Start the write cycle
instructions write the desired data into the write latches
and specify the lower 16 bits of the program memory
address to write to. To configure the NVMCON register
for a word write, set the NVMOP bits (NVMCON<3:0>)
to ‘0011’. The write is performed by executing the
unlock sequence and setting the WR bit (see
Example 4-4).
© 2007 Microchip Technology Inc.