ICOP Technology ICOP-602X User Manual page 38

Type: The BIOS contains a table of predefined drive types. Each defined
drive type has a specified number of cylinders, number of heads, write
precompensation factor, landing zone, and number of sectors. Drives whose
specifications do not accommodate any predefined type are classified as
type USER.
Size: Disk drive capacity (approximate). Note that this size is usually slightly
greater than the size of a formatted disk given by a disk-checking program.
Cyln: Number of cylinders
Head: Number of heads
WPcom: Write Precompensation. Older HDD's have the same number of
sectors per track at the innermost tracks as at the outermost tracks. This
means that the data density at the innermost tracks is higher and thus the
bits are lying closer together. Areas having the same direction tend to float
away from each other and areas having opposite direction tend to float
towards each other making the data less reliable after some time. To avoid
this, starting from the WP cylinder, bits are written on the surface making
your data last longer. Starting with this Cylnumber until the end of
Cylnumber the writing starts earlier on the disk. In modern HDs (all ATBUS
and SCSI, Small Computer Systems Interface) this entry is useless.
Sec: Number of sectors
LBA Mode Logical Block Addressing Mode enables support for IDE drives
with capacities greater than 528 MB (On/Off)
Block Mode Support IDE drives that use Block Mode. (On/Off)
32Bit Mode Support IDE drives that permit 32-bit accesses. (On/Off)
PIO Mode IDE Programmed I/O mode. PIO programming also
works with ATAPI CD-ROM drives. The settings are Auto, 0, 1, 2, 3, 4, or 5.
Click on Auto to allow AMIBIOS to automatically find the PIO mode that the
IDE drive being configured uses. If you select 0-5 you must make absolutely
certain that you are selecting the PIO mode supported by the IDE drive
being configured.
BootSector Virus Protection
It is not exactly a virus protection. All it does is whenever your boot sector is
accessed for writing, it gives a warning to the screen allowing you to disable
the access or to continue. Extremely annoying if you use something like
OS/2 Boot Manager that needs to write to it. It is completely useless for
SCSI or ESDI (Enhanced Small Device Interface) drives as they use their
34 ICOP Embedded 386SX CPU ISA Half Size SBC User's Manual