Enhanced VESA Multi I/O Card
(12-10153)                 Features                   Faxback Doc. # 17552


    Supports 4 Enhanced "Mode 3" IDE devices (incl. ATAPI Standard CD-ROM)
    Anti-Virus and Anti-Hard Disk crash protection
    Supports 2 Floppy Disk Drives (360K/1.2MB/720K/1.44MB - 3.5"/5.25")
    Supports IDE BIOS EPROM for Enhanced IDE under DOS
    Supports 2 standard serial ports
    Supports 2 high speed FIFO UART serial ports
    Supports 1 printer port LPT1/LPT2
    Supports Enhanced Parallel port Standard SPP/ECP/EPP
    IRQ for serial ports can be jumper selected as IRQ 3, 4, 5, 9
    Supports 1 game port
    Supports Green feature for I/O chip

Overview

The Enhanced VESA Multi I/O Card offered as 20-10153 is a powerful ENHANCED
VESA IDE and ISA floppy, serial, printer and game port controller for VL-
Bus computer systems.  It interfaces between standard or ENHANCED IDE
drives and the VL-Bus to support 16-Bit and 32-Bit data transfer.  Available in two versions, the core of the card is its Enhanced IDE
capabilities, and options are available for high speed FIFO UARTs and
SPP/ECP/EPP parallel port support.

What is ENHANCED IDE?

ENHANCED IDE was developed by a group of companies including Western
Digital & Microsoft with the aim of enhancing the IDE standard for VL-bus
and PCI-Bus computer systems.  Its main features are the ability to support
4 devices (including ATAPI standard CD-ROM), up to 8.4GB capacity and up to
13MB/sec data transfer speeds.  It also has a feature called LBA (Logical
Block Address).  When used with a true Enhanced hard drive & Enhanced
system BIOS this will add plug & play features to a system.  It will read
your hard drive type and adjust the system BIOS automatically.  (With LBA
you do not need to set the hard drive 'type/cylinder/heads' etc in the
STANDARD CMOS setup of your system BIOS).  Although an ENHANCED IDE card is
designed to work with ENHANCED Hard Drives and systems, it can also work
with standard hard drives/systems.

Users wishing to use Enhanced IDE to the full extent should ensure they
have (1) an Enhanced Hard Drive and (2) the system (Motherboard) BIOS to
support Enhanced IDE.  Below is a table which explains the capabilities
of Enhanced IDE in two different environments.

┌───────────────┬─────────────┬────────────────┬──────────────────────┐
│FEATURE        │ Enhanced    │ Non-Enhanced   │ Remarks              │
│               │ System BIOS │ System BIOS    │                      │
├───────────────┼─────────────┼────────────────┼──────────────────────│
│Up to 4 devices│   Yes       │      Yes       │ Driver needs to be   │
│               │             │                │    installed         │
│Over 528MB HDD │   Yes       │       No       │ Need an Enhanced     │
│               │             │                │    System BIOS       │
│LBA Mode       │   Yes       │       No       │ Need an Enhanced     │
│               │             │                │  System BIOS and True│
│               │             │                │  Enhanced Hard Drive │
└───────────────┴─────────────┴────────────────┴──────────────────────┘


(CC/tmc-12/04/95)