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© 2009 Microchip Technology Inc. DS39934B-page 1
PIC24FJ64GA1/GB0
1.0 DEVICE OVERVIEW
This document defines the programming specification
for the PIC24FJ64GA1/GB0 families of 16-bit
microcontroller devices. This programming specification
is required only for those developing programming
support for the PIC24FJ64GA1/GB0 families.
Customers using only one of these devices should use
development tools that already provide support for
device programming.
This specification includes programming specifications
for the following devices:
2.0 PROGRAMMING OVERVIEW
OF THE PIC24FJ64GA1/GB0
FAMILIES
There are two methods of programming the
PIC24FJ64GA1/GB0 families of devices discussed in
this programming specification. They are:
• In-Circuit Serial Programming™ (ICSP™)
• Enhanced In-Circuit Serial Programming
(Enhanced ICSP)
The ICSP programming method is the most direct
method to program the device; however, it is also the
slower of the two methods. It provides native, low-level
programming capability to erase, program and verify
the chip.
The Enhanced In-Circuit Serial Programming
(Enhanced ICSP) protocol uses a faster method that
takes advantage of the programming executive, as
illustrated in Figure 2-1. The programming executive
provides all the necessary functionality to erase, pro-
gram and verify the chip through a small command set.
The command set allows the programmer to program
the PIC24FJ64GA1/GB0 devices without having to
deal with the low-level programming protocols of the
chip.
FIGURE 2-1: PROGRAMMING SYSTEM
OVERVIEW FOR
ENHANCED ICSP™
This specification is divided into major sections that
describe the programming methods independently.
Section 4.0 “Device Programming – Enhanced
ICSP” describes the Run-Time Self-Programming
(RTSP) method. Section 3.0 “Device Programming –
ICSP” describes the In-Circuit Serial Programming
method.
• PIC24FJ32GA102 • PIC24FJ64GA102
• PIC24FJ32GA104 • PIC24FJ64GA104
• PIC24FJ32GB002 • PIC24FJ64GB002
• PIC24FJ32GB004 • PIC24FJ64GB004
PIC24FJXXGA1/GB00X
Programmer
Programming
Executive
On-Chip Memory
PIC24FJ64GA1/GB0 Families Flash
Programming Specification
