User manual

Configuring the PKTx Hardware 2-3
1784-6.5.27 - September 1997
Setting a Base Memory Address Jumper
The host computer and the PKTx card exchange data via a dual-port
interface. The dual-port requires 4 Kbytes of memory. This 4 Kbyte block
of memory begins at the base memory address assigned to the card by the
PCI BIOS when the computer is started.
Under MS-DOS, Windows 3.1 and Windows for Workgroups, the base
memory address of PC cards should fall within the range of 0 and 1
Megabyte of PC memory. For the newer 32-bit operating systems, this
restriction is no longer required, and the base memory address should be
located anywhere in the PC memory space.
The Base Memory Address jumper (JP2) forces the PCI BIOS to assign the
base memory address to one of two address ranges, as shown in the table
below. You should select the jumper position based on the operating system
running on your PC.
Table 2-1 Jumper Positions for single PKT x cards
Operating System Jumper Position (JP2) Base Memory Address Range
DOS
Windows 3.1
Windows for
Workgroups
Non-Microsoft system
Toward 1Meg position
Located in the range between 0 and
1Mb in the PC memory
Windows 95
Windows NT
Toward 32bit position
Located anywhere in the available
physical memory of the PC