Floppy Diskette Drive Subsystem; Cd-Rom Subsystem; Pcmcia Subsystem - Texas Instruments Extensa 570x Series Maintenance Manual

Caution: Formatting the disk drive erases any data that may be stored
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on the disk. Therefore do not attempt a format of the hard disk unless
the computer self test and diagnostics confirm that the disk has not
been formatted.
A Hard Drive activity ICON is located on the Status LED beneath the
Display Assembly. This ICON is visible during hard driver read/write
accesses.
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Caution: The notebook should not be moved when the HDD ICON is lit
to prevent accidental damage to the hard drive.
4.2.5
The Floppy Diskette Drive Subsystem consists of a Floppy Controller (part of
the Super I/O Chip, SMC37C655IR) and the removable Floppy Diskette
Drive. The Floppy Diskette Drive can read/write standard 3.5-inch
minidiskettes. The floppy drive installs in the Media Bay and can be
removed to install a CD-ROM drive or a second battery pack (Lithium Ion).
4.2.6
Many of the Extensa 57x models are equipped with a removable 5.25 inch,
CD-ROM drive (4X or 6X speeds). The drive uses the standard ATAPI
interface.
The CD-ROM subsystem is controlled by the IPC (which also controls the
hard drive subsystem).
4.2.7
The notebook is equipped with an on-board PCMCIA host adapter
(UM8366F) PCMCIA Controller) and sockets to support Type I, II, or III
options. The PCMCIA Controller has the following features:
Single-chip PCMCIA host adapters
Direct connection to ISA (PC AT) Bus
Direct connection to PCMCIA 2.0 Bus
PCMCIA 2.0- and JEIDA 4.1-compliant
82365SL-compatible register set, ExCA-compatible
Automatic Low-power Dynamic Mode for lowest power consumption
Programmable Suspend Mode
Five programmable memory windows per socket

Floppy Diskette Drive Subsystem

CD-ROM Subsystem

PCMCIA Subsystem

Theory of Operation 4-7