Motorola M68CPU32BUG Manuel d'utilisateur télécharger pdf (Page 57)

SUPPORT INFORMATION

M68332BCC/D 5-1 MOTOROLA

REV 1

CHAPTER 5

SUPPORT INFORMATION

5.1 INTRODUCTION

This chapter provides the connector signal descriptions.

5.2 CONNECTOR SIGNAL DESCRIPTIONS

Connectors P1 and P2 connect the BCC to a target system. Connector P3 is for background

mode. Connector P4 is for serial communication between the BCC and a host computer.

Pin assignments for P1, P2, P3 and P4 are defined in Tables 5-1 through 5-4. Connector signals

are identified by pin number, signal mnemonic, and signal name and description.

Table 5-1. P1 Expansion Connector Pin Assignments

Pin Number

Signal Mnemonic

Signal Name And Description

1, 2 GND GROUND

3, 4 +5V SYSTEM POWER SUPPLY – +5 volt power source.

5 DTROUT DATA TERMINAL READY – RS-232C handshake from

the BCCDI.

6 — 24 A0 — A18 ADDRESS BUS – Three-state output address bus.

25 NC No Connection

26 NC No Connection

27 +13—24V DI +13—24 VOLTS DEVELOPMENT INTER-FACE –

BCCDI switching voltage.

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 67 68

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Motorola M68CPU32BUG Manuel d'utilisateur Page 57