DSP200.SYS

Quatech DSP-200/300 PCMCIA Dual RS-422/RS-485 Serial Port driver.

 DEVICE=x:\path\DSP200.SYS COM3

or

DEVICE=x:\path\DSP200.SYS (port_number,base_address,irq)

• No spaces should appear inside the parentheses.
• The DSP-200 requires 16 bytes of I/O space, starting with the base address.
• The first port resides in the first 8 bytes, the second in the next 8 bytes.

Parameters

COM

Select the COM port, COM1, COM2, COM3

Port

COM Port: 3 = COM3

Base_Address

The base_address is a hexadecimal value that must end with 0.

IRQ

The irq is a decimal value from 2 to 15.

Optional

=Sx

TIE A CONFIGURATION TO SOCKET NUMBER 'X'.

A DSP-200 inserted into socket 'x' will always use this configuration. This also means that only one configuration will be tried for a given socket.

Example: Always configure a DSP-200 in socket 1 as COM3 and COM4, and a DSP-200 in socket 2 as COM8 and COM9.

DEVICE=x:\path\DSP200.SYS COM3=S1 COM8=S2

=HS

ENABLE RTS-CTS HARDWARE HANDSHAKE

The RTS signal will be connected to AUXOUT, and the CTS signal will be connected to AUXIN. This allows RTS-CTS hardware flow control to be used.

Example:

DEVICE=x:\path\DSP200.SYS (3,110,4)=HS

=DTR

USE DTR TO ENABLE OUTPUTS ON PORT A

Outputs are enabled when the DTR signal is active, and are tristated when the DTR signal is not active. This allows half-duplex communication.

Example:

DEVICE=x:\path\DSP200.SYS (15,110,5)=DTR

=RTS

USE RTS TO ENABLE OUTPUTS ON PORT A

Outputs are enabled when the RTS signal is active, and are tristated when the RTS signal is not active. This allows half-duplex communication.

Example:

DEVICE=x:\path\DSP200.SYS COM17=DTR

=BON

PORT B OUTPUTS ALWAYS ENABLED

By default, the outputs on port B obey the same control as those on port A. This option forces the port B outputs to always be active regardless of the state of port A.

Example:

 DEVICE=x:\path\DSP200.SYS COM17=BON

Examples

Method 1

Let OS/2 PCMCIA Plug-and-Play choose hardware settings

DEVICE=x:\path\DSP200.SYS COM3

The client driver's first and only choice is to configure the DSP-200 to use COM3 and COM4. Only one DSP-200 can be used.

DEVICE=x:\path\DSP200.SYS COM3 COM5

The client driver's first choice is to configure the DSP-200 to use COM3 and COM4. The second choice is to use COM5 and COM6. Up to two DSP-200s can be used.

Method 2

Specify the hardware settings

DEVICE=x:\path\DSP200.SYS (3,110,5)

The client driver's first and only choice is to configure the DSP-200 for COM3 (I/O addresses 110-117 hex) and COM4 (I/O addresses 118-11F hex), using IRQ 5. Configuration will fail if any of these resources are already in use. Only one DSP-200 can be used.

DEVICE=x:\path\DSP200.SYS (3,300,4) (5,110,15)

The client driver's first choice is to configure the DSP-200 for COM3 (I/O addresses 300-307 hex) and COM4 (I/O addresses 308-30F hex), using IRQ 4. The second choice is to configure the DSP-200 for COM5 (I/O addresses 110-117 hex) and COM6 (I/O addresses 118-11F hex), using IRQ 15. Up to two DSP-200s can be used.