User manual

MPLAB

PM3 User’s Guide

Certain voltages may be viewed/set for Flash devices (see Table 7-5) and Non-Flash

devices (see Table 7-6). Other voltages are applicable to both types of devices (see

Table 7-7). For Information on changing voltage settings and using low voltage pro-

gramming, see Section 7.5.2.1 “Changing Voltage Settings” and

Section 7.5.2.2 “Using Low Voltage Program”, respectively.

TABLE 7-5: FLASH DEVICES

Selection Description

VDD APP This is the voltage used by the programmer to verify Flash

memory. The default is the device's nominal voltage value.

TABLE 7-6: NON-FLASH DEVICES

Selection Description

VDD Min This voltage and VDD Max are used by the programmer to

verify memory in EEPROM devices. The value should be the

minimum voltage for the designated circuit. The default is the

device's minimum voltage value.

VDD Max This voltage and VDD Min are used by the programmer to

verify memory. The value should be the maximum voltage for

the designated circuit. The default is the device's maximum

voltage value.

TABLE 7-7: ALL DEVICES

Selection Description

VDD Nom This is the voltage at which the device is programmed. This

should be the average voltage at which the system will run.

The default is 5 volts.

PP This is the voltage used to bring the device into a program-

ming mode. Although this is dependent of the device's

programming specification, it may be changed. If “Low

Voltage Program” is selected, this is changed to

VDD Nom

by the programmer.

Reset Voltages Resets all voltages to their default values.

Low Voltage Program In ICSP™ mode, select this checkbox to perform Low Volt-

age programming. Low Voltage programming uses a dedi-

cated pin to enter into the programming mode versus a high

voltage on V

PP. This check box is ignored when a socket is

installed.

Power Target Circuit from

MPLAB PM3

In ICSP mode, this allows the target circuit to be powered

from MPLAB PM3 to supply power for programming. This

check box is ignored when a socket is installed.