PIC24FJ64GB002-I/SS Microchip Technology, PIC24FJ64GB002-I/SS Datasheet - Page 60

• Manufacturer Part Number: PIC24FJ64GB002-I/SS
• Description: 16-bit, 16 MIPS, 64KB Flash, 8KB RAM, Nanowatt XLP, USB OTG 28 SSOP .209in TUBE
• Manufacturer: Microchip Technology

Specifications of PIC24FJ64GB002-I/SS

• Processor Series: PIC24
• Core: PIC24F
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 8192 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 5
• Operating Supply Voltage: 2 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Development Tools By Supplier: MPLAB Integrated Development Environment
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current (max): 300 mA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC24FJ64GB004 FAMILY
EXAMPLE 5-4:
EXAMPLE 5-5:
EXAMPLE 5-6:
DS39940D-page 60
// C example using MPLAB C30
//Set up NVMCON for row programming
//Set up pointer to the first memory location to be written
//Perform TBLWT instructions to write necessary number of latches
for(i=0; i < 2*NUM_INSTRUCTION_PER_ROW; i++)
// C example using MPLAB C30
asm("DISI #5");
__builtin_write_NVM();
#define NUM_INSTRUCTION_PER_ROW 64
unsigned int offset;
unsigned int i;
unsigned long progAddr = 0xXXXXXX;
unsigned int progData[2*NUM_INSTRUCTION_PER_ROW];
NVMCON = 0x4001;
TBLPAG = progAddr>>16;
offset = progAddr & 0xFFFF;
{
}
__builtin_tblwtl(offset, progData[i++]);
__builtin_tblwth(offset, progData[i]);
offset = offset + 2;
DISI
MOV
MOV
MOV
MOV
BSET
NOP
NOP
BTSC
BRA
#5
#0x55, W0
W0, NVMKEY
#0xAA, W1
W1, NVMKEY
NVMCON, #WR
NVMCON, #15
$-2
LOADING THE WRITE BUFFERS – ‘C’ LANGUAGE CODE
INITIATING A PROGRAMMING SEQUENCE – ASSEMBLY LANGUAGE CODE
INITIATING A PROGRAMMING SEQUENCE – ‘C’ LANGUAGE CODE
// Block all interrupts with priority < 7
// for next 5 instructions
// Perform unlock sequence and set WR
; 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
// Buffer of data to write
// Write to address low word
// Write to upper byte
// Address of row to write
// Initialize NVMCON
// Initialize PM Page Boundary SFR
// Initialize lower word of address
// Increment address
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