CHAPTER 5
SWITCH SETTING
5.1 Introduction
The six jumper blocks on the
PCCOM ISA bus 2 port adapter must be configured correctly in accordance
with the operating system you are using.
JP1 (Jumper 1)
Determines the I/O address of port 1.
JP2 (Jumper 2)
Determines the I/O address of port 2.
JP3 (Jumper 3)
JP4 (Jumper 4)
Select interrupt for port 1. The range is from IRQ2 to IRQ15.
JP5 (Jumper 5)
Select interrupt for port 2. The range is from IRQ2 to IRQ15.
JP6 (Jumper 6)
Select delay wait state.
Determines the I/O address of port 1.
JP2 (Jumper 2)
Determines the I/O address of port 2.
JP3 (Jumper 3)
Enable selected interrupt. The
selection of this jumper should correspond to the selection of JP4 and
JP5.
JP4 (Jumper 4)
Select interrupt for port 1. The range is from IRQ2 to IRQ15.
JP5 (Jumper 5)
Select interrupt for port 2. The range is from IRQ2 to IRQ15.
JP6 (Jumper 6)
Select delay wait state.
5.2 Configuration for Dip Switch and Jumper
It is important to refer to the
user manual supplied with your operating system to determine the
correct configuration. Although we provide installation advice for
various operating systems, it is not possible to cover all systems in
this user guide. Please contact your supplier if you have any
difficulties with configuration.
IMPORTANT
: CARE MUST BE TAKEN IN SELECTING THE CONFIGURATION OF JUMPERS
AND SWITCH TO ENSURE YOU DO NOT DUPLICATE SETTINGS OF OTHER EQUIPMENT
ALREADY INSTALLED IN YOUR COMPUTER. DUPLICATION OF SETTINGS WILL RESULT
IN A MALFUNCTION OF ONE OR BOTH DEVICES.
Please refer to the following
settings for each switch and jumper block. If you are installing more
than one board, do not duplicate jumper settings for any parameter.
DECISION
COMPUTER INTERNATIONALCO.,LTD.
JP1 and JP2 are used to select
UART I/O address for each port. Where JP1 is used to select port 1
address, JP2 is used to select port 2 address. Each JP contains A9 to
A3 jumper pins and EN jumper pin. The A9 to A3 are used to set I/O port
address, when the corresponding pin is short means 0, otherwise no pin
short means 1. The figure above set the I/O address to 2A0H. The
EN pin is used to enable the selected port, not short the jumper means
enable the port, otherwise, if you short the jumper means disable this
port.
The default setting of this board are:
JP4 is used to select interrupt
for port 1 and JP5 is used to select interrupt for port 2. It can
arrange these interrupts in any combination, this means it can set all
ports in different interrupt, however do not share the same interrupt.
The figures shown above is to set interrupt on 12.
The default setting of this board is interrupt 5 (IRQ5).
The default setting of this board is interrupt 5 (IRQ5).
3.Common IRQ
The JP3 is used to enable
IRQ2 to IRQ15 bus lines. Note that the selection of this jumpers
should correspond to the selection of the interrupts on the JP4 and
JP5. For example, if you select IRQ5 and IRQ10 on the JP4 and JP5, you
need short IRQ5 and IRQ10 of JP3.
4.Select Wait State
The JP6 is used to select delay wait state.
5.3 Standard COM1 and COM2 ports
If you want to set the adapter
as standard COM1 and COM2, please refer the following settings.
