Chapter
5
Glossary
SCHILLER
AT-I
3-CImeL
ECG
Unit
SERVICE
HANDBOOK
Issue
2
July
I998
Acronyms
RESLCDI
RESP
RTS
ftyD
R/W
SC(O..S)
SCINV
SI
so
SP..
SRAM
sm1/2
SYSED
TGATE
TM
TPC
TPCLK
TPD
TPDUR
TPCSEL
TPL
TPRES
TPSOk1
TPTH
TS
TXD
Resers
I
darkens the
LCD.
Error reset signal to inactivate the LCD.
Ready
to
send
-
ougoing serial
dam
handshake with
CTS-
Receive
data
-
incoming serial
data.
Read
i
Write
System control
bus
-
CPU control signals.
Screen inversion.
Senal
in.
Serial
output
from
the
CPU
to
the
ECG
amplifier
via
opt0 isolators.
Spirometry control and
dam
signals.
Static
fib4
memory.
Timing
signals
for
printer conuol.
System enable
-
active when the program pack
is
inserted. The
CPU
will
not
work
if
this
signal
is
not active.
Gate pulse for programmable
timer.
T~IS
signal
sets the
"DUR
si,.nal.
Thermal printer temperature
-
dc voltage from the print head, pulse
width modulation
of
signal
TPTH.
Thermal printer clock.
This
is
not
a
continuous clock signal but
is
active when loading
a
line
of
printer
data
(into shift registers).
Thermal printer clock
Thermal printer
data
-
serial
data
for the printer.
Thermal printer duration
-
duration
of
the strobe pulse dependant
on
the ambient temperature
of
the print head and the resistance
of
the
print head.
Thermai printer controller select
-
control
of
thermal printer
FlFO
(input memory buffer).
Thermal pnnter latch
-
print
suobe
control and
data
latch signal.
Thermal pnnter reset
-
FIFO
reset for thennal printer controller.
Thermal Printer Strobe
-
master timing strobe enable signal.
Thermal Pnnter temperature
-
dc voltage from the print head
to
ADC,
approximately
3.7V
at
room temperature.
Temperature sense (from battery).
Outgoing serial
data.
Page
5.6
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