Ampro Corporation 486E manual Overview, Interface Connector Summary

Chapter 2

Product Reference

Overview

This chapter contains the technical information required to install and configure the Little Board™/486e CPU. The information includes:

!Power Connector

!DRAM memory

!Serial Ports

!Bi-directional parallel port

!Floppy disk interface

!IDE hard disk interface (Compact Flash)

!Video Controller

!32-pin byte-wide socket

!Ethernet local area network interface

!Utility connector (keyboard, PC speaker, reset button, external battery, PS/2 mouse)

!Watchdog timer

!Battery-backed clock

!PC/104-compatible expansion bus

!SETUP function

Interface Connector Summary

Refer to Figure 2–1 for the locations of the connectors (P1A/B, P2C/D, J2 – J7, J11 – J16) and configuration jumpers (W1 – W14). Table 2–1 summarizes the use of the I/O connectors and Table 2–2 summarizes use of the configuration jumpers. Each interface is described in its own section, showing connector pin outs, signal definitions, required mating connectors, and configuration jumper options.

Many of the connectors have a key pin removed. This allows you to block the corresponding cable connector socket to help prevent improper assembly and possible board damage. Table 2–1 indicates which pins are key pins, and Figure 2–1 shows their locations.

2–1