Specifications

CoreModule/PC Technical Manual
A-18
n Configure the DOS bootmap. Select which hard drives will be the first, second, third, or fourth
DOS drives. This tells DOS which drive will come up as the "C:" drive, "D:" drive, etc. The
"1st Hard Disk" will be the boot device if "Hard Disk" is selected for the default boot device.
The CoreModule/PC does not contain an onboard interface. In order to use SCSI devices, a
MiniModule/FSS (or equivalent) must be properly configured and connected to the CoreModule/PC.
If the CoreModule/PC is being operated without a MiniModule/FSS, be sure to leave SCSI/BIOS
services disabled with the SETUP function.
The same comments apply to the floppy interface. Use a MiniModule/FSS (or equivalent) to provide
a floppy disk interface if you need one in your application. Set the floppy drive parameter to "None"
if no drive is attached.
The following sections provide more details about the SCSI and hard disk parameters and options
that are specified through the SCSI and Disk SETUP menu options:
SCSI/BIOS Services
Note that the SCSI/BIOS disable function does not prevent the use of a system's SCSI hardware
controller for non-SCSI I/O. It simply disables the function within the CoreModule/PC's ROM-
BIOS relating to DOS drive support.
It is recommended that you disable SCSI/BIOS services in applications that do not require them, so
the ROM-BIOS does not waste time waiting for a non-existent SCSI drive to become available at
boot time.
SCSI Initiator ID
Enter a value for the MiniModule/FSS's SCSI Initiator ID (0-7). This must be a unique ID for the
system. No other drive, peripheral, or controller can have this ID. Generally 7 is selected as it has
the highest priority for SCSI Bus arbitration.
SCSI Read/Write Retries
This option specifies how many times the ROM-BIOS retries when accessing SCSI devices as DOS
disk drives. A typical value to choose is 10 retries.