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LSI(IXA036DR)
The I/O signal of the LSI(IXA036DR) are detailed in the following table.
Pin No.
Signal
1
AN0
2
P77
3
P76
4-5
P75-P74
6
P73
7
P72
8
P71
9
P70
10-11
P57-P56
12
P55
13-17
P54-P50
18
P47
19
P46
20
P45
21
P44
22
INT1
23
INT0
DESCRIPTION OF LSI
I/O
IN
Used for initial balancing of the bridge circuit (absolute humidity sensor). This input
is an analog input terminal from the AH sensor circuit, and connected to the A/D
converter built into the LSI.
OUT
Timing signal output terminal for temperature measurement(OVEN
THERMISTOR).
"H" level (GND) : Thermistor OPEN timing.
"L" level (-5V) : Temperature measuring timing. (Convection cooking)
OUT
Timing signal output terminal for temperature measurement(OVEN
THERMISTOR).
"H" level (GND) : Thermistor OPEN timing.
"L" level (-5V) : Temperature measuring timing. (Convection cooking)
OUT
Terminal not used.
IN
Signal coming from touch key.
When any one of G9 line keys on key matrix is touched, a corresponding signal
from P10, P11, P12, P13, P14, P15, P16 and P17 will be input into P73. When no
key is touched, the signal is held at "L" level.
IN
Signal similar to P73.
When any one of G10 line keys on key matrix is touched, a corresponding signal
will be input into P72.
IN
Signal similar to P73.
When any one of G11 line keys on key matrix is touched, a corresponding signal
will be input into P71.
IN
Signal similar to P73.
When any one of G12 line keys on key matrix is touched, a corresponding signal
will be input into P70.
OUT
Terminal not used.
OUT
Signal to sound buzzer.
A: key touch sound.
B: Completion sound.
C: When the temperature of the oven cavity
reaches the preset temperature in the
preheating mode, or when the preheating
hold time (30 minutes) is elapsed.
OUT
Used for initial balancing of the bridge circuit (absolute humidity sensor).
OUT
Terminal not used.
IN
Input signal which communicates the damper open/close information to LSI.
Damper opened; "H" level signal (0V:GND).
Damper closed; "L" level signal (-5V:VC).
OUT
Terminal not used.
OUT
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay
(RY2). In 100% operation, the
signals hold "L" level during
microwave cooking and "H" level
while not cooking. In other
cooking modes (70%, 50%, 30%,
10%) the signal turns to "H" level
and "L" level in repetition
according to the power level.
OUT
Terminal not used.
IN
Signal to synchronized LSI with commercial power source frequency(50Hz).
This is basic timing for time processing
of LSI.
Description
ON/OFF time ratio in Mi-
cro cooking
(a. 32second time base)
MICRO
ON
COOK
100%
32 sec.
70%
24 sec.
50%
18 sec. 14 sec.
30%
12 sec. 20 sec.
10%
6 sec. 26 sec.
23
0.12 sec
A
2.4 sec
B
1.2 sec
1.2 sec
H: GND
C
L
ON/OFF time ratio in Mi-
cro cooking
(a. 48second time base)
MICRO
ON
OFF
OFF
COOK
100%
48 sec.
0 sec.
0 sec.
70%
36 sec. 12 sec.
8 sec.
50%
26 sec. 22 sec.
30%
16 sec. 32 sec.
10%
8 sec. 40 sec.
H : GND
L (-5V)
20 msec.
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