Specifications

Chapter 1 Hardware Configuration

1.8 Jumper Settings

This section provides instructions on how to configure your card by

setting jumpers. It also includes the card's default settings and your

options for each jumper.

1.8.1 How to set jumpers

You configure your card to match the needs of your application by

setting jumpers. A jumper is a metal bridge that closes an electrical circuit.

It consists of two metal pins and a small metal clip (often protected by a

plastic cover) that slides over the pins to connect them. To “close” (or

turn ON) a jumper, you connect the pins with the clip. To “open” (or

turn OFF) a jumper, you remove the clip. Sometimes a jumper

consists of a set of three pins, labeled 1, 2, and 3. In this case you

connect either pins 1 and 2, or 2 and 3.

A pair of needle-nose pliers may be useful when setting jumpers.

1.8.2 CPU clock ratio setting (SW1)

You must configure your PCA-6179 CPU card to the frequency of

your Intel

Coppermine processor by setting jumper SW1. The

PCA-6179 SW1 jumper is equpped to use Intel Coppermine proces-

sors with speed ratios of 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5 6, 6.5, 7, 7.5, 8,

8.5, 9, or 9.5 with a bus clock speed of 133 MHz. Configure your

PCA-6179 as follows: