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Tandy 1000 Technical Reference Manual

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Tandy 1000
(3)
Low
voltage
sensor
Technical Reference Manual
The
low
voltage
sensor
is
equipped
to
protect
the
FDD
from
erroneous
operation
due
to
the
internal
circuit
construction
of
the
FDD
during
unstable
condition
of
the
supplied
voltage
such
as
at
power
on
or
off.
The
output
of
this
sensor
is
supplied
to
almost
all
the
functional
blocks
of
the
read
write
circuit,
and
control
circuit
to
protect
the
write
driver
and
erase
driver
from
erroneous
operation
under
the
unstable
condition
of
the
DC
power
voltage.
Power
on
Power
off
+SV
power
3.4"-4.4V
Low
voltage
sensor
output
(U
,pin
17)
Note:
Dotted
line
shows
the
LVS
input
pin
34
of
U2,
control
LSI.
lFig.307)
Low
voltage
sensor
waveforms
- 314 -

Table of Contents

Other manuals for Tandy 1000

Preview: User Guide
User Guide337 pages
Preview: Programmer's Reference Guide
Programmer's Reference Guide251 pages
Preview: Basic Reference Manual
Basic Reference Manual411 pages
Preview: Owner's Manual
Owner's Manual46 pages

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Tandy 1000 Specifications

General IconGeneral
ProcessorIntel 8088
Processor Speed4.77 MHz
RAM128 KB (expandable to 640 KB)
Operating SystemMS-DOS 2.11
ManufacturerTandy Corporation
Release Year1984
StorageSingle or double 5.25" floppy disk drive (360 KB), optional hard drive
SoundTandy 3-voice sound
PortsParallel, Serial
GraphicsCGA (Color Graphics Adapter)
Graphics Modes320x200, 640x200

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