Appendix A Flash/Rom Disk - Advantech PCA-6143P User Manual

The size of the emulated drive depends on the size and number of
the chips you install. For example, if you install three 512 KB
chips, you will have 3 x 512 KB = 1.536 MB, equivalent to a 1.44
MB floppy.
You will need to set jumpers JP19, JP23 and JP24 to match the
type (Flash, RAM or ROM) and size (128 KB or 512 KB) of the
devices you use. All the devices must be the same type and size.
The following tables shows the size and number of devices you
will need for each size emulated disk. It also shows the corre-
sponding settings of jumpers JP19, JP23(Flash/RAM/ROM) and
JP24 (128 KB/512 KB).
SRAM 128K
SRAM 512K
FLASH 128K
FLASH 512K
EPROM 128K
EPROM 512K
Before you activate the Flash/RAM/ROM drive (using the BIOS
Advanced Setup program), you will need to set the drive's I/O and
memory addresses to avoid conflicts with other plug-in cards. You
will also need to set the DOS drive designation to be used by the
Flash/RAM/ROM drive. DIP switch SW1 controls each of these
settings, as described in the following sections:
JP19 JP23
- Open
- Open
2-3 Short
2-3 Short
1-2 Short
1-2 Short
JP24
Short
Open
Short
Open
Short
Open

Appendix A Flash/ROM disk 41