Con
ten
ts
Introduction
&
Features
..........................................
1
Board layout
................................................................
2
Installation
....................................................................
3-
1
5
RAM
installation
&
configuration
................................
3-4
ROM
installation
.......................................................
5
DIP
switch settings
...................................................
6-8
Panel indicators and switches
....................................
9-10
Speaker
and power supply
connector
.........
....11-12
Keyboard
connector.................................................
13
Fastening motherboard
to
case .................................
14-15
Reconfiguring
..............................................................
1
6
Operation
......................................................................
17-20
Obtaining 10MHz Turbo mode
..................................
18
Setting default operation mode
.................................
18
Software switch
........................................................
18-19
Hardware switch
.......................................................
19
Alternate
use
of
both switches
..................................
20
Turbo
LED
and hardware switch
................................
20
Technical information
.............................................
21
-30
Introduction
............................................................. 21-22
DMA
........................................................................
22
Timer
.......................................................................
22
Interrupt
...................................................................
23
Memory
...................................................................
23
Keyboard
.................................................................
23
Speaker ...................................................................
24
Expansion
I/O
channel..............................................24-25
I/O
channel
description
.............................................
26—29
Speaker
interface
.....................................................
30
1
)
J
.9
Introduction
You
can
rest
assured
of
having
made a
wise
choice
in
buying
the
PIM-TB10-Z
motherboard
for your
personal
computer.
This
motherboard
is
not only
compatible
with
the
PC/XT but provides you
with
these features:
-
16-bit
8088-10
CPU or qualified 8088-2 CPU (optional
8087-1
coprocessor).
-
Switchable processing speed
in
10MHz (110%
faster
than
normal
—
4.77MHz) and 4.77MHz.
-
Turbo/Normal
modes selectable
by
either
a
software
switch or
a
hardware switch.
-
Memory
expandable
to
640K
on
mainboard.
-
ROM
capacity —
8K BIOS.
~
LEGAL
BIOS from
ERSO (Electronics Research
&
Organization),
8
expansion
slots.
4-channel
DMA
for
disk and special
I/O.
3-channel
timer
for
music and time.
8-Ievel interrupt.
-
IBM
PC/XT®
compatible.
-
Operating
systems
:
MS-DOS®, CPM/86®, CCP/M®.
-
Speed test
by
Norton®
Utility
:
2.1
by
Landmark®
Speed Test
Program
:
4.1
The
clear,
well-illustrated
instructions
in
this
manual
ensure that even
if
you
are a newcomer
to
the computer
world, you
will
have
your
system installed and
running
with
the
minimum
of
effort.