Intel 21555 manual Introduction, DIP Switch Operation, Stake-Pin Jumper a

Models: 21555

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Table 1. DIP Switch Operation

Introduction

Table 1. DIP Switch Operation

Switch

Switch

The Switch Controls

Reference Information

Pack

 

 

 

 

 

 

 

 

SW1, 2, 3

PICMG configurations. (See Chapter 3).

Table 10 on page 21

J9

 

 

 

 

 

21555 Non Transparent

 

 

 

 

SW4

PR_AD1 strapping option.

PCI-to-PCI Bridge User’s

 

 

 

Manual

 

 

 

 

 

SW5

PR_CS to either Flash or optional ROM socket.

Table 8 on page 19

 

 

 

 

J20

SW1

PR_AD2 for SROM operation.

Table 7 on page 18

 

 

SW2

PR-AD3 for lockout bit control.

 

 

 

 

 

 

 

SW3

PR_AD4 for synchronous or asynchronous clocking.

Table 14 on page 22

 

 

 

 

SW4

PR_AD5 for S_CLKO operation.

 

 

 

 

 

 

 

SW5

PR_AD6 for Central function selection.

Table 12 on page 22

 

 

 

 

J21

SW#

The REQ/GNT lines for Arbiter control.

Table 12 on page 22

(1,2,3,4,5)

Table 13 on page 22

 

 

 

 

 

 

1.5Stake-Pin Jumper

Table 2 shows the configuration and the function of the single stake-pin jumper. J8 enables the DE1B55503 hot-swap functionality, controls operation of LED L1, and connects the l_stat signal to a pullup resistor.

Table 2. Stake-Pin Jumper a

Jumper

Function

 

 

 

 

When removed, the hot-swap functionality is enabled, and L1 will light.

J8

When installed, hot-swap functionality is disabled and the L1 LED is

 

 

extinguished.

 

 

 

a.No jumper is installed by the Factory default.

21555 PCI-to-PCI Bridge Evaluation Board User’s Guide

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Page 9
Image 9
Intel 21555 manual Introduction, DIP Switch Operation, Stake-Pin Jumper a