Advantech PCA-6143P User Manual page 40

The PCA-6143P features an internal Flash/ROM disk drive. This
drive emulates a floppy disk drive by using solid-state memory
chips (Flash or EPROM) to store programs and data instead of the
magnetic particles on the mechanical drive's disk. The Flash/ROM
disk offers much faster access times than a floppy or hard disk and
greatly increased reliability in harsh environments.
The Flash/ROM disk works by modifying the BIOS INT-13 disk
I/O routine on boot-up. The routine then translates read and write
commands to the disk so that they will correctly access the
memory chips. You don't need any special drivers. You simply set
the drive to act as a DOS drive (e. g. A:, B:, C: or D: - 1st, 2nd, 3rd
or 4th floppy disks) and use standard DOS commands (COPY,
DIR, etc.) to manipulate your data.
Before you use the Flash/ROM disk, you will need to enable it
with the BIOS Advanced Setup Program, discussed in Chapter 5.
The Flash/RAM/ROM disk supports the following memory
devices, or their equivalents:
• 27C010 128 KB x 8 EPROM
• 27C040 512 KB x 8 EPROM
• 28F010 128 KB x 8 +12 V Flash Memory (AMD/INTEL)
• 29C010 128 KB x 8 +5 V Flash Memory (ATMEL only)
• 29C040 512 KB x 8 +5 V Flash Memory (ATMEL only)
If you use EPROM, files on the disk are read only. You will need
an external programmer to load your program and data files on the
EPROMs.
If you use +5 V Flash memories (29C010 or 29C040) for the solid
state disk, you can read or write data just like a floppy disk; you
need not use an external programmer. If you use +12 V Flash
memories (28F010) you will still need an external programmer to
write data.
40 PCA-6143P User's Manual