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SS-554

SYNERGY SOLUTIONS

SS-554

Card Type

Serial card

Chipset Controller

16C554 UART

I/O Options

Serial port (4 serial port connectors on external cable)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

37-pin serial port interface connector

CN1

SERIAL PORT INTERRUPT SELECTION (PORTS 1 - 4)

IRQ

S2/2

S2/3

S2/4

S2/5

S2/6

S2/7

5

Off

Off

On

Off

Off

Off

 

2

Off

Off

Off

Off

Off

On

 

3

Off

Off

Off

Off

On

Off

 

4

Off

Off

Off

On

Off

Off

 

6

Off

On

Off

Off

Off

Off

 

7

On

Off

Off

Off

Off

Off

BASE I/O ADDRESS SELECTION (SERIAL PORT 1 - 4)

Address

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

S1/7

100h

On

On

On

Off

On

On

On

 

120h

On

On

On

Off

On

On

Off

 

140h

On

On

On

Off

On

Off

On

 

160h

On

On

On

Off

On

Off

Off

 

180h

On

On

On

Off

Off

On

On

 

0F60h

Off

Off

Off

Off

On

Off

Off

 

0F80h

Off

Off

Off

Off

Off

On

On

 

0FA0h

Off

Off

Off

Off

Off

On

Off

 

0FC0h

Off

Off

Off

Off

Off

Off

On

 

0FE0h

Off

Off

Off

Off

Off

Off

Off

Note: A total of 128 base address settings are available. The switches are a binary representation of the decimal memory addresses. S1/1 is the Most Significant Bit and switch S1/7 is the Least Significant Bit. The switches have the following decimal values: S1/1=2048, S1/2=1024, S1/3=512, S1/4=256, S1/5=128, S1/6=64, S1/7=32. Turn off the switches and add the values of the switches that are off to obtain the correct memory address. (Off=1, On=0)

FACTORY CONFIGURED - DO NOT ALTER

Switch

Position

S2/1

Off