Microchip Technology MPLAB ICE, User Manual

Page: 160 / 192

MPLAB
®
ICE User’s Guide
DS51159B-page 160

2001 Microchip Technology Inc.
Power Supply Requirements:
MPLAB ICE 2000: +5V, ±5%, 3.0A
B.4 Parallel Port
MPLAB ICE connects to the host PC via an industry standard bi-directional
parallel peripheral interface (printer port). The parallel port connector is
located on the rear panel of the pod. An IEEE 1284-A type connector (25-pin
DSUB) on the host PC is required.
The emulator pod can be connected to any IEEE Std.1284 compliant parallel
peripheral interface, and will meet the mechanical and electrical device
compliance criteria of the IEEE 1284 specification. MPLAB ICE uses its own
proprietary communication protocol and device driver to communicate with
the host computer.
MPLAB ICE supports both compatible and bi-directional parallel port modes.
MPLAB will determine to which mode the host PC is configured. Refer to
Section 4.4 for more information regarding parallel (LPT) port communication.
The parallel port signals are utilized as shown in Table B.1. Refer to the IEEE
1284 specification for the complete pin-out of a Type A standard parallel port
PC interface.
WARNING
Do not use a PICMASTER-CE power supply with
MPLAB ICE. Damage may occur.
WARNING
Using MPLAB ICE in conjunction with a security key,
external disk drive, or other parallel device (i.e., printer,
Zip drive, scanner) may result in permanent damage
to that device.
Table B.1: Parallel Printer Port Signal Assignment Bi-directional Mode
Pin
Number
MPLAB ICE
Signal
Direction
1
Description
1 *STROBE Out Read/Write Strobe
2-9 Data[0:7] In/Out Data Bus
17 *R/W Out Selects Read or Write Operation
14 *A/D Out Selects Address or Data Operation
1
From computer