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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: or C:) and use standard DOS com-
mands (COPY, DIR, etc.) to manipulate your data.
Before you use the Flash/ROM disk, you will need to enable it with
J29 and the BIOS Chipset Features Setup Program as detailed in
Chapter 4.
The Flash/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)
• 29C040A 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) 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.
Before you activate the Flash/ROM drive (using the BIOS Chipset
Features 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/ROM drive. The following jumpers sets the configuration of
the SSD as described in the following sections:
28
PCM-4862 User's Manual
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