IBM Personal System/2 65 SX User Manual

Bit 2
Bit 1
When
set
to
1,
this
bit
indicates
that
the
time
is
invalid.
When
set
to
1,
this
bit
indicates
that
the
adapters
do
not
match
the
configuration
information.
When
set
to
1,
this
bit
indicates
that
a
time-out
occurred
while
an
adapter
ID
was
being
read.
Shutdown-Status
Byte
(Hex
00F):
This
byte
is
defined
by
the
power-on
diagnostic
programs.
Diskette-Drive-Type
Byte
(Hex
010):
This
byte
indicates
the
type
of
diskeite
drive
installed.
Bit Function
7-4 First Diskette-Drive Type
3-0 Second Diskette-Drive Type
Figure
3-16. Diskette-Drive-Type Byte
Bits7-4
These
bits
indicate
the
first
diskette-drive
type,
as
shown
in the following table.
Bits
7654 Function
0000 No drive present
0001
Double-sided
diskette
drive
(48
tracks
per
inch,
360KB)
0011
High-capacity
diskette
drive
(720KB)
0100
High-density
diskette
drive
(1.44MB)
Note:
All
combinations
that
are
not
shown
are
reserved.
Figure
3-17.
Diskette-Drive-Type
Bits
(Bits
7-4)
3-18
Model
65
System
Board
—
October
1990

IBM Personal System/2 65 SX Specifications

General

Brand	IBM
Model	Personal System/2 65 SX
Category	Desktop
Language	English