PIC16F913 datasheet(206/272 Pages) MICROCHIP

206 / 272 page

PIC16F917/916/914/913

DS41250E-page 204

Preliminary

16.11 In-Circuit Debugger

The PIC16F917/916/914/913-ICD can be used in any

of the package types. The device will be mounted on

the target application board, which in turn has a 3 or 4

wire connection to the ICD tool.

When the debug bit in the Configuration Word

(CONFIG<12>) is programmed to a ‘0’, the In-Circuit

Debugger functionality is enabled. This function allows

simple debugging functions when used with MPLAB®

ICD 2. When the microcontroller has this feature

enabled, some of the resources are not available for

general use. See Table 16-9 for more detail.

For more information, see “Using MPLAB® ICD 2”

(DS51265),

available

Microchip’s

web

site

(www.microchip.com).

16.11.1 ICD PINOUT

The devices in the PIC16F91X family carry the

circuitry for the In-Circuit Debugger on-chip and on

existing device pins. This eliminates the need for a

separate die or package for the ICD device. The pinout

for the ICD device is the same as the devices (see

Section 1.0 “Device Overview” for complete pinout

and pin descriptions). Table 16-9 shows the location

and function of the ICD related pins on the 28 and 40

pin devices.

TABLE 16-9:

PIC16F917/916/914/913-ICD PIN DESCRIPTIONS

Note: The user’s application must have the

circuitry

required

support

ICD

functionality. Once the ICD circuitry is

enabled, normal device pin functions on

RB6/ICSPCLK/ICDCK/SEG14

and

RB7/ICSPDAT/ICDDAT/SEG13 will not be

usable. The ICD circuitry uses these pins for

communication with the ICD2 external

debugger.

Pin (PDIP)

Name

Type

Pull-up

Description

PIC16F914/917

PIC16F913/916

ICDDATA

TTL

—

In Circuit Debugger Bidirectional data

ICDCLK

—

In Circuit Debugger Bidirectional clock

MCLR/VPP

—

Programming voltage

11,32

VDD

P—

12,31

8,19

VSS

P—

Legend: TTL = TTL input buffer, ST = Schmitt Trigger input buffer, P = Power, HV = High Voltage

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