Epson Apex 386SX/16 Canadian Product User Manual - Page 19

PPM-1630C, 80386SX-16, 32-bit, 80387SX-16, CS8221, 16MHz, Onboard, 512KB, 640KB, 1, 5MB, 2MB, 3MB, - development

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1-3 Features The PPM-1630C motherboard includes the following features: • Intel 80386SX-16 microprocessor - 32-bit CPU with a 16bit external data bus and a 24-bit external address bus • Intel 80387SX-16 coprocessor optional • Use of C&T's CS8221 PC/AT-compatible chip set. • Switchable between 8MHz Normal mode and 16MHz Turbo mode by either a software switch or a hardware switch • Onboard battery backup for CMOS configuration table and real-time clock • RAM subsystem of 512KB, 640KB, 1 MB, 1.5MB, 2MB, 3MB, 4MB and 5MB • Eight expansion slots - Six 16 bit slots and two 8 bit slots • Sixteen-level interrupt • Seven-channel DMA for disk and special I/O • 64KB legal DTK BIOS (ADL certified) developed by Datatech Enterprises Co., Ltd. • Supports other BlOSes such as Phoenix, Award, and AMI • Four-layer mainboard • LIM 4.0 EMS support • Shadow RAM support • Choice of either 44256 DIP or 256K/1M SIMM DRAM modules with 1OOns • Page/Interleaved DRAM access method support • Power fail detect circuit • Address pipeline support. 4 Chapter 1: System Overview

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1-3
Features
The
PPM-1630C
motherboard
includes
the
following
features:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Intel
80386SX-16
microprocessor
— 32-bit
CPU
with
a
16-
bit
external
data
bus
and
a
24-bit
external
address
bus
Intel
80387SX-16
coprocessor
optional
Use
of
C&T’s
CS8221
PC/AT-compatible
chip
set.
Switchable
between
8MHz
Normal
mode
and
16MHz
Turbo
mode
by
either
a
software
switch
or
a
hardware
switch
Onboard
battery
backup
for
CMOS
configuration
table
and
real-time
clock
RAM
subsystem
of
512KB, 640KB, 1
MB,
1.5MB, 2MB,
3MB, 4MB
and
5MB
Eight
expansion
slots
—
Six
16
bit
slots
and
two
8
bit
slots
Sixteen-level
interrupt
Seven-channel
DMA
for
disk
and
special
I/O
64KB
legal
DTK
BIOS
(ADL
certified)
developed
by
Datatech
Enterprises
Co.,
Ltd.
Supports
other
BlOSes
such
as
Phoenix,
Award,
and
AMI
Four-layer
mainboard
LIM 4.0
EMS
support
Shadow
RAM
support
Choice
of
either
44256
DIP
or
256K/1M
SIMM
DRAM
modules
with
1OOns
Page/Interleaved
DRAM
access
method
support
Power
fail
detect
circuit
Address
pipeline
support.
4
Chapter
1:
System
Overview