Sharp R-771(W)N - Description of Lsi

DESCRIPTION OF LSI
LSI(fZAS01DR) .
The
1/O
signal
of
the
LSI(IZA901DR)
are
detailed
in
the
following
table.
[ PinNo. 7 signal {| WN
Terminal not used.
VL1
IN
Power
source
voltage
input
terminal.
Standard voltage for LCD.
AN7-AN5
Heating
constant
compensation
terminal.
AN4
IN’
Door closed; "H" level signal.
AN2 IN
Door opened; "L" level signal.
1
9-10
AN1-ANO
Terminal
not
used.
P57
Terminal
not
used.
OUT
1
2
3-5
Signal coming from potentiometer.
By
inputting
DC
voltage
corresponding
tothe
cooking
mode
set
by
the
potentiometer,
this
input
is
converted
into
the
cooking
mode
by
the
A/D
converter
built
into
the
LSI,
Terminal not used.
input
sianal
which
communicates
the
door
open/close
information
to
LS
:&
lL.
ae —
Signal
to
sound
buzzer.
‘poses
A:
key
touch
sound.
B: Completion sound.
2.4 sec
— = G Nh
Terminal not used.
14-18
P54-P50'|
IN/OUT
|
Terminal
not
used.
P47
Signal
coming
from
touch
tact
switch.
When
any
one
of
J-8
line
tact
switches
on
key
and
jog
unit
matrix
is
touched,
a
~
corresponding
signal
from
P40,
P41,
P76
and
P77
will
be
input
into
P47.
When
no
~
pe
tact
switch
is
touched,
the
signal
is
held
at
"L"
level.
Signal similar to P47.
When
any
one
of
J-7
line
tact
switches
on
key
and
jog
unit
matrix
is
touched,
a
corresponding
signal
will
be
input
into
P46.
Signal similar to P47.
When
any
one
of
J-4
line
tact
switches
on
key
and
jog
unit
matrix
is
touched,
a
corresponding
signal
will
be
input
into
P45.
Signal similar to P47.
When
any
one
of
J-3
line
tact
switches
on
key
and
jog
unit
matrix
is
touched,
a
corresponding
signal
will
be
input
into
P44.
Signal coming from encoder.
When
the
encoder
is
turned,
the
contacts
of
encoder
make
pluse
signals.
And
pulse signala are input into INT1.
iit) wh
oO co
Signal
to
synchronized
LSI
with
commercial
power
source
frequency(50Hz).
H: GND
This
is
basic
timing
for
time
processing
of
LSI.
|
|
|
mana L(5Y)
|_sonses |
Tact switch strobe signal.
Signal
applied
to
tact
switch
section.
A
pulse
signal
is
input
to
P44
-
P47
terminal
while
one
cf
J-6
line
tact
switches
on
maitrix
is
touched.
Tact switch strobe signal,
Signal
applied
to
tact
switch
section.
A
pulse
signal
is
input
to
P44
-
P47
terminal
while
one
of
J-5
line
tact
switches
on
matrix
is
touched.
Tact switch strobe signal.
Signal
applied
to
tact
switch
section.
A
pulse
signal
is
input
to
P44
-
P47
R-771
-
22
|
Oa
EE
SII
AR
TSP
TESTD
Ses
CSR
oO
TT
ra
TE
ae
a
rao
Fe
ad
Ds
Sa
a
aa
cena
|