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Card Configuration
Each port on the PCM-3614 card requires configuration prior
to use. The DIP switches set ports to the appropriate I/O ad-
dress (SW2) and different modes (SW1). The jumpers set the
port's IRQ.
Default Settings
The board is shipped with default settings. If you need to
change these settings, however, see the following sections.
Otherwise, you can simply install the card.
PCM-3614 Default Configuration
Setting
Default Function
JP3
IRQ 5
Speed Mode
1 x
IRQ mode
Share
Base Address
Address 300H
Vector Address
Interrupt 280H
Standard/ Enhanced Enhance
Operating System
Windows 95/98/NT
Jumper and switch settings
The PCM-3614 can function in many different modes accord-
ing to your application needs. These modes include Standard/
Enhanced Mode, Independent/Shared IRQ Mode, Speed
Mode, and Operating System Mode. Details of these specific
modes are described as follows:
Standard/Enhanced Mode (M0)
PCM-3614 can be used in standard or enhanced mode. In
standard mode the I/O addresses are compatible with the
standard PC communication ports, COM1 ~ COM4. In en-
hanced mode you can select a different base address. The
offset of each port from the base address is fixed. You can
use M0 of DIP switch (SW1) to select standard or enhanced
mode.
In the following sections, we will use the icons shown below
to represent switches set for ON or OFF.
Switch is set ON.
Switch is set OFF.
Standard mode
ON
ON
ON
ON
ON
2
In standard mode, the I/O address of the ports are as follows:
Port
Port 1
Port 2
Port 3
Port 4
Enhanced mode
ON
ON
ON
ON
ON
In enhanced mode, you can select a different base address.
The vector address determines the address for each of the
four ports.
The I/O addresses for the four ports are as follows:
Port
Port 1
Port 2
Port 3
Port 4
You use switches 1~7 of DIP switch SW2 to set the base
address anywhere from hex 200 to 3F8.
To set the base address, you have to calculate the base
address as follows: (switch ON is "0", switch OFF is "1".)
ON
ON
ON
ON
ON
The following table shows different base address settings.
Port base address (SW2)
Base Address
200 - 207 (hex)
208 - 20F (hex)
*300 - 307 (hex)
3E8 - 3EF (hex)
SW1
3F8 - 3FF (hex)
l
Note: If your CPU module or card has serial interface ports,
you will need to adjust the I/O port addresses (or dis-
able the ports) to avoid conflicts.
I/O address
Interrupt No.
3F8
Selectable
2F8
Selectable
3E8
Selectable
2E8
Selectable
I/O address
Base + 00H
Base + 08H
Base + 10H
Base + 18H
Base address Decimal
line
A3
A4
A5
A6
A7
A8
A9
A3
A4
A5
A6
l
l
l
l
¡
l
l
l
l
l
l
l
¡
l
¡
¡
¡
¡
¡
¡
¡
: ON
: OFF
* : Default
PCM-3614 User's Manual
SW1
HEX
value
value
8
8
16
10
32
20
64
40
128
80
256
100
512
200
A7
A8
A9
l
l
¡
l
l
¡
l
¡
¡
¡
¡
¡
¡
¡
¡
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