Features - DTK Computer Apex 386/40 User Manual

1-3 Features

4
Chapter 1: System Overview
.
386-33140 microprocessor with 80387-33140 or Weitek 3167
numeric coprocessor optional
.
Use of the DTK DA315 and DA342 chipset
.
Dual speed, 33/40MHz cache support in ultra-high speed.
Emulation without cache is enabled in low speed. Software
or hardware switches toggle between high and low speeds.
.
l/2/4/5/8 MB 32-bit DRAM onboard
.
Direct-mapped high-speed SRAM cache memory support:
64KB
.
Write-back cache update for O-wait state memory-write
operations
.
DTK, or AMI BIOS support
.
Shadow HAM function for BIOS and video
.
One 32-bit memory expansion slot for the PEI-307 32-bit
memory expansion card, expanding 32-bit memory up to
16MB
.
Six 16-bit AT compatible l/O slots
.
Two a-bit AT compatible l/O slots
.
AT bus speed —
KEEN-3336: 8MHz
KEEN-4030: 10MHz
.
DALLAS DS1287 chip to maintain system configuration and
real-time clock setting
.
Keyboard and speaker attachments
.
Seven DMA channels
.
16-level interrupt
.
Three programmable timers
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