B&B Electronics ESCLP-100 - Manual - Manual (Page 10)

2.3.3 Quatech intelligent "Q-suffix" series products
Parameter format: (id,mem,port,io,irq)
id Quatech adapter ID
"ESI"
for Quatech ESI-xxxQ intelligent 8-port adapter
Any other value will cause an installation error.
mem Memory window address, five hex digits
The hexadecimal base address of the memory window used by the adapter. This value must match the
adapter's address DIP switch settings.
port Starting port number, 1 or 2 decimal digits
The first port on the adapter. The other ports on the adapter follow in contiguous sequence. For
example, to install a Quatech ESI-100Q eight-port adapter for COM8 through COM15, use "8" or
"08".
io Base I/O address, 3 or 4 hex digits
This is the simulated base I/O address of the starting port on the adapter (indicated by "port"). The
other ports on the adapter are simulated as residing at increments of eight bytes in contiguous I/O space
following the first port.
This field is used to simulate I/O space for the adapter in order to allow DOS and Windows sessions to
access the serial ports. The virtual device driver will capture access to this I/O address range and map
these accesses to the memory-mapped serial ports. If no DOS or Windows applications will be used
with the ports on the adapter, this field can be set to "000", and the adapter will use no I/O space.
Even though the intelligent adapter does not actually use any I/O space, if this field is non-zero, the I/O
space set aside for the adapter must actually be unused by any other device.
irq Interrupt (IRQ) level, 1 or 2 decimal digits
The hardware interrupt level (2-15) used by all ports on the adapter.
Example 1: (ESI,D0000,10,280,12)
A Quatech ESI-100Q eight-port intelligent adapter providing COM10 through COM17 is
installed in a memory window starting at D0000 hex using IRQ12. DOS applications will find
the ports at I/O base addresses 280, 288, 290, 298, 2a0, 2a8, 2b0 and 2b8 hex.
Example 2: (ESI,D0000,10,000,12)
A Quatech ESI-100Q eight-port intelligent adapter providing COM10 through COM17 is
installed in a memory window starting at D0000 hex using IRQ12. DOS applications will not
have access to the ports on this adapter, as no simulated base I/O address is specified.
Quatech Asynchronous Serial Device Driver for OS/2 7