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  Microchip Technology Semiconductor Electronic Components Datasheet  

PIC24H Datasheet

(PIC24H Family) High Performance 16-Bit Microcontrollers

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dsPIC33F/PIC24H
dsPIC33F/PIC24H Flash Programming Specification
1.0 DEVICE OVERVIEW
This document defines the programming specification
for the dsPIC33F 16-bit Digital Signal Controller (DSC)
and PIC24H 16-bit Microcontroller (MCU) families. This
programming specification is required only for those
developing programming support for the dsPIC33F/
PIC24H family. Customers only using one of these
devices should use development tools that already
provide support for device programming.
This document includes programming specifications
for the following devices:
• dsPIC33FJ64GP206
• dsPIC33FJ64GP306
• dsPIC33FJ64GP310
• dsPIC33FJ64GP706
• dsPIC33FJ64GP708
• dsPIC33FJ64GP710
• dsPIC33FJ128GP206
• dsPIC33FJ128GP306
• dsPIC33FJ128GP310
• dsPIC33FJ128GP706
• dsPIC33FJ128GP708
• dsPIC33FJ128GP710
• dsPIC33FJ256GP506
• dsPIC33FJ256GP510
• dsPIC33FJ256GP710
• dsPIC33FJ64MC506
• dsPIC33FJ64MC508
• dsPIC33FJ64MC510
• dsPIC33FJ64MC706
• dsPIC33FJ64MC710
• dsPIC33FJ128MC506
• dsPIC33FJ128MC510
• dsPIC33FJ128MC706
• dsPIC33FJ128MC708
• dsPIC33FJ128MC710
• dsPIC33FJ256MC510
• dsPIC33FJ256MC710
• PIC24HJ64GP206
• PIC24HJ64GP210
• PIC24HJ64GP506
• PIC24HJ64GP510
• PIC24HJ128GP206
• PIC24HJ128GP210
• PIC24HJ128GP306
• PIC24HJ128GP310
• PIC24HJ128GP506
• PIC24HJ128GP510
• PIC24HJ256GP206
• PIC24HJ256GP210
• PIC24HJ256GP610
• dsPIC33FJ12GP201
• dsPIC33FJ12GP202
• dsPIC33FJ12MC201
• dsPIC33FJ12MC202
• PIC24HJ12GP201
• PIC24HJ12GP202
2.0 PROGRAMMING OVERVIEW
OF THE dsPIC33F/PIC24H
There are two methods of programming the dsPIC33F/
PIC24H family of devices discussed in this
programming specification. They are:
• In-Circuit Serial Programming™ (ICSP™)
programming capability
• Enhanced In-Circuit Serial Programming
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 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 dsPIC33F/PIC24H Programming Specification
devices without having to deal with the low-level
programming protocols of the chip.
© 2007 Microchip Technology Inc.
Preliminary
DS70152D-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

PIC24H Datasheet

(PIC24H Family) High Performance 16-Bit Microcontrollers

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dsPIC33F/PIC24H PROGRAMMING SPECIFICATION
FIGURE 2-1:
Programmer
PROGRAMMING SYSTEM
OVERVIEW FOR
ENHANCED ICSP™
dsPIC33F/PIC24H
Programming
Executive
On-Chip Memory
FIGURE 2-2:
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CONNECTIONS FOR THE
ON-CHIP REGULATOR
3.3V
dsPIC33F/PIC24H
VDD
VDDCORE
CF
VSS
This specification is divided into major sections that
describe the programming methods independently.
Section 3.0 “Device Programming – Enhanced
ICSP” describes the Enhanced ICSP method.
Section 5.0 “Device Programming – ICSP” describes
the ICSP method.
2.1 Power Requirements
All devices in the dsPIC33F/PIC24H family are dual volt-
age supply designs: one supply for the core and another
for the peripherals and I/O pins. A regulator is provided
on-chip to alleviate the need for two external voltage
supplies.
All of the dsPIC33F/PIC24H devices power their core
digital logic at a nominal 2.5V. To simplify system
design, all devices in the dsPIC33F/PIC24H Program-
ming Specification family incorporate an on-chip regu-
lator that allows the device to run its core logic from
VDD.
The regulator provides power to the core from the other
VDD pins. A low-ESR capacitor (such as tantalum) must
be connected to the VDDCORE pin (Figure 2-2). This
helps to maintain the stability of the regulator. The
specifications for core voltage and capacitance are
listed in Section TABLE 8-1: “AC/DC Characteristics
and Timing Requirements”.
Note 1:
These are typical operating voltages. Refer
to Section TABLE 8-1: “AC/DC Charac-
teristics and Timing Requirements” for
the full operating ranges of VDD and
2.2 Program Memory Write/Erase
Requirements
The program Flash memory on the dsPIC33F/PIC24H
has a specific write/erase requirement that must be
adhered to for proper device operation. The rule is that
any given word in memory must not be written without
first erasing the page in which it is located. Thus, the
easiest way to conform to this rule is to write all the data
in a programming block within one write cycle. The pro-
gramming methods specified in this document comply
with this requirement.
Note:
A program memory word can be pro-
grammed twice before an erase, but only
if (a) the same data is used in both pro-
gram operations or (b) bits containing ‘1
are set to ‘0’ but no ‘0’ is set to ‘1’.
DS70152D-page 2
Preliminary
© 2007 Microchip Technology Inc.


Part Number PIC24H
Description (PIC24H Family) High Performance 16-Bit Microcontrollers
Maker Microchip Technology
Total Page 30 Pages
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