Motorola M68CPU32BUG Manuel d'utilisateur télécharger pdf (Page 22)

HARDWARE PREPARATION AND INSTALLATION

M68332BCC/D 2-12 MOTOROLA

REV 1

2.4 INSTALLATION INSTRUCTIONS

A user supplied power supply and RS-232C compatible terminal are required for BCC operation.

An RS-232C compatible host computer, with terminal emulation package, may be connected to

the BCC for S-record downloading.

2.4.1 Power Supply - BCC Interconnection

The BCC requires +5 Vdc @ 200 mA (max.) for operation. Use 18 to 20 AWG wire to connect a

user supplied power supply to the BCC. This connection is made via expansion connector P1 or

P2.

There are two preferred methods for connecting the power supply to the BCC: wire-wrap and

crimp-to-wire. When using the crimp-to-wire method, fabricate two wires (+5 Vdc and GND) as

follows:

a. Trim back 18 - 20 AWG wire approximately 0.25 inch.

b. Attach a crimp-to-wire receptacle (Dupont 46227-0000) to the wire using a crimping

tool.

c. Place heat shrink tubing (Digi-Key W183-ND) on the crimp-to-wire receptacle and

shrink using a heat source.

Connect the power supply ground fabricated wire to pin 1, 2, 63, or 64 of P1 or P2. Connect the

power supply +5 Vdc fabricated wire to pin 3, 4, 61, or 62 of P1 or P2 (as shown below).

GND

+5V

GND

+5V

GND

P1/P2

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Motorola M68CPU32BUG Manuel d'utilisateur Page 22