Microchip PIC24FJ128GA308 Handleiding

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 2009-2012 Microchip Technology Inc. DS39970E-page 1

PIC24FJXXXDA1/DA2/GB2/GA3/GC0

1.0 DEVICE OVERVIEW

This document defines the programming specification

for the PIC24FJXXXDA1/DA2/GB2/GA3/GC0 families

of 16-bit microcontrollers (MCUs). This programming

specification is required only for those developing pro-

gramming support for the PIC24FJXXXDA1/DA2/GB2/

GA3/GC0 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:

Topics covered include:

1.0 Device Overview .......................................................1

2.0 Programming Overview of the

PIC24FJXXXDA1/DA2/GB2/GA3/GC0 Families.......... 2

3.0 Device Programming – ICSP................................... 18

4.0 Device Programming – Enhanced ICSP .................. 33

5.0 The Programming Executive ................................... 51

6.0 Device Details ......................................................... 63

7.0 AC/DC Characteristics and Timing Requirements......... 66

• PIC24FJ128DA106 • PIC24FJ256DA106

• PIC24FJ128DA110 • PIC24FJ256DA110

• PIC24FJ128DA206 • PIC24FJ256DA206

• PIC24FJ128DA210 • PIC24FJ256DA210

• PIC24FJ128GB206 • PIC24FJ256GB206

• PIC24FJ128GB210 • PIC24FJ256GB210

• PIC24FJ64GA310 • PIC24FJ128GA310

• PIC24FJ64GA308 • PIC24FJ128GA308

• PIC24FJ64GA306 • PIC24FJ128GA306

• PIC24FJ64GC010 • PIC24FJ128GC010

• PIC24FJ64GC008 • PIC24FJ128GC008

• PIC24FJ64GC006 • PIC24FJ128GC006

PIC24FJXXXDA1/DA2/GB2/GA3/GC0 Families Flash

Programming Specication

PIC24FJXXXDA1/DA2/GB2/GA3/GC0

DS39970E-page 2  2009-2012 Microchip Technology Inc.

2.0 PROGRAMMING OVERVIEW

OF THE PIC24FJXXXDA1/DA2/

GB2/GA3/GC0 FAMILIES

There are two methods of programming the

PIC24FJXXXDA1/DA2/GB2/GA3/GC0 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 (PE),

as illustrated in Figure 2-1. The Programming Execu-

tive provides all the necessary functionality to erase,

program and verify the chip through a small command

set. The command set allows the programmer to

program the PIC24FJXXXDA1/DA2/GB2/GA3/GC0

MCUs 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 3.0 “Device Programming – ICSP” describes

the In-Circuit Serial Programming method. Section 4.0

“Device Programming – Enhanced ICSP” describes

the Run-Time Self-Programming (RTSP) method.

Note: The address of Special Function Register,

TBLPAG, has changed from 0x32 to 0x54

in PIC24FJXXXDA1/DA2/GB2/GA3/GC0

family devices.

In those cases where legacy programming

specification code from other device

families is used as a basis to implement

the PIC24FJXXXDA1/DA2/GB2/GA3/GC0

families’ programming specification, spe-

cial care must be taken to ensure all

references to TBLPAG, in any existing

code, are updated with the correct opcode

hex data for the mnemonic and operands

(as shown below).

PIC24FJXXXDA1/DA2/GB2/GA3/GC0 Families

All Other PIC24F Families

Command

(Binary)

Data

(Hex) Description

0000 MOV W0, TBLPAG 8802A0

Command

(Binary)

Data

(Hex) Description

0000 MOV W0, TBLPAG 880190

PIC24F Devices

Programmer Programming

Executive

On-Chip Memory

 2009-2012 Microchip Technology Inc. DS39970E-page 3

PIC24FJXXXDA1/DA2/GB2/GA3/GC0

2.1 Power Requirements

All PIC24FJXXXDA1/DA2/GB2/GA3/GC0 devices

power their core digital logic at a nominal 1.8V. To

simplify system design, all devices in the

PIC24FJXXXDA1/DA2/GB2/GA3/GC0 families incor-

porate an on-chip regulator that allows the device to

run its core logic from VDD. For the PIC24F128GA310

and PIC24FJ128GC010 families, the regulator is always

enabled, so there is no ENVREG pin on these devices.

The regulator provides power to the core from the other

VDD pins. A low-ESR capacitor (such as ceramic or tan-

talum) must be connected to the VCAP pin (see Table 2-1

and Figure 2-2). This helps to maintain the stability of the

regulator. The specifications for core voltage and capac-

itance are listed in Section 7.0 “AC/DC Characteristics

and Timing Requirements”.

2.2 Program Memory Write/Erase

Requirements

The Flash program memory on PIC24FJXXXDA1/DA2/

GB2/GA3/GC0 devices has a specific write/erase

requirement that must be adhered to for proper device

operation. Any given word in memory must not be

written more than twice before erasing the page where

it is located. Thus, the easiest way to conform to this

rule is to write all of the data in a programming block,

within one write cycle. The programming methods

specified in this specification comply with this

requirement.

FIGURE 2-2: CONNECTIONS FOR THE

ON-CHIP REGULATOR

FIGURE 2-3: CONNECTIONS FOR THE

VBAT PIN

TABLE 2-1: PIN DESCRIPTIONS (DURING PROGRAMMING)

Note: Writing to a location multiple times without

erasing is not recommended.

VDD

ENVREG

VCAP

VSS

PIC24FJXXXDA1/DA2/GB2

CEFC

3.3V

Regulator Enabled (ENVREG tied to VDD):

(10 F typ)

VDD

VBAT

VCAP

VSS

PIC24FJXXXGA3/GC0

CEFC

3.3V

Regulator Enabled (VBAT tied to VDD or a Battery):

(10 F typ)

Pin Name

During Programming

Pin Name Pin Type Pin Description

MCLR MCLR P Programming Enable

ENVREG( )1ENVREG( )1I Enable for On-Chip Voltage Regulator

VDD, AV and SVDD DD( )2VDD P Power Supply

VSS, AVSS and SVSS( )2VSS P Ground

VCAP CAPV P On-Chip Voltage Regulator Output to the Core

PGECx PGECx I Programming Pin Pairs 1, 2 and 3: Serial Clock

PGEDx PGEDXI/O Programming Pin Pairs 1, 2 and 3: Serial Data

Legend: I = Input, O = Output, P = Power

Note 1: There is no ENVREG pin in the PIC24FJ128GA310 and PIC24FJ128GC010 families. The regulator is

always enabled and the ENVREG pin is replaced by the VBAT pin. It is recommended to connect the VBAT

pin to the battery or VDD during programming.

2: All power supply and ground pins must be connected, including analog supplies and ground (AVDD/AVSS

and SVDD/SVSS, where implemented).

Product specificaties

Merk:	Microchip
Categorie:	Niet gecategoriseerd
Model:	PIC24FJ128GA308

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