Vp2000 and vt100, Parallel port, Parallel port address – Eurotech Appliances CPU-1461 User Manual

Page 35: Parallel port irq number, Parallel dma channel, Parallel port mode, Vp2000

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PC/104-Plus – CPU-1461 Module

35

Note: not all consecutive IRQ numbers from 3 to 15 can be used; to help the selection, the Setup

program displays legal IRQ numbers only.


Note: the IRQ is shared: the ports can use the same IRQ number.

VP2000 and VT100

With this option the user can enable or disable the VP2000 and VT100 functionality serial ports.

Parallel Port

Parallel Port Address

Option

Description

Note

Disabled

Disable the serial port

0378h

Parallel Port address selected at 378h

0278h

Parallel Port address selected at 278h


Parallel Port IRQ Number

Option

Description

Note

None

No IRQ selected for the Parallel Port

3

IRQ 3 selected

4

IRQ 4 selected

...

...

12

IRQ 12 selected


Note: not all consecutive IRQ numbers from 3 to 12 can be used; to help the selection, the Setup

program displays legal IRQ numbers only.


Parallel DMA Channel

Option

Description

Note

None

No DMA selected for the Parallel Port

0

DMA Channel 0 selected

1

DMA Channel 1 selected

3

DMA Channel 3 selected


Parallel Port Mode

The user, according the parallel device connected to the interface, can choose The Parallel Port Mode

. The

default mode is Bidirectional.

Option

Description

Note

Printer

Standard mono-directional printer interface

Bi-directional

Bi-directional printer interface

PP FIFO

EPP and SPP mode

ECP

ECP mode

EPP

EPP mode

VP2000

With this option the user can enable or disable the VP2000 functionality on the parallel port.



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