Sharp R-320CD Service Manual page 26

R-320CD/CK/CW
R-330CK/CW
Pin No. Signal
55 SEG10
56-82
SEG11-SEG37
83-85
SEG38-SEG40
86 P40
87 P41
88 P42
89 IRQ0
90 AVCC
91 AN0
92 AN1
93 AN2
94 AN3
95-98 AN4-AN7
99 AN8
100 AN9
LSI(IZA950DR) : R-330CK/CW
The I/O signal of the LSI(IZA950DR) is detailed in the following table.
Pin No. Signal
1 AN10
2 AN11
3 AVSS
4 P10
5 P11
6 P12
I/O
OUT Terminal not used.
OUT Segment data signal.
Signal similar to SEG1.
OUT Terminal not used.
OUT Terminal not used.
IN Signal similar to AN10.
When either G13 line on key matrix is touched, a corresponding signal will be input into P41.
IN Signal similar to AN10.
When either G12 line on key matrix is touched, a corresponding signal will be input into P42.
IN Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
IN A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI. Connected to GND.
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.
IN AH sensor input.
This input is an analog input terminal from the AH sensor circuit, and connected to the A/
D converter built into the LSI.
IN To input signal which communicates the door open/close information to LSI.
Door close "H" level signal (0V). Door open "L" level signal (-5V).
OUT Terminal not used.
IN Terminal to change cooking input according to the Model.
By using the A/D converter contained in the LSI, DC voltage in accordance with the Model
in operation is applied to set up its cooking constant.
IN Input terminal to judge the model.
The signal out of P17 will be input into AN8 through G1 line on key matrix. The LSI will judge
the model by this signal.
IN Signal similar to AN10.
When either G11 line on key matrix is touched, a corresponding signal will be input into AN9.
I/O
IN Signal coming from touch key.
When either G10 line on key matrix is touched, a corresponding signal out of P10 - P17 will
be input into AN10. When no key is touched, the signal is held at "H" level.
IN Signal similar to AN10.
When either G9 line on key matrix is touched, a corresponding signal will be input into AN11.
IN Connected to VC.
OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN9, AN10, AN11, P41 and
P42 terminal while one of G8 line keys on key matrix is touched.
OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN9, AN10, AN11, P41 and
P42 terminal while one of G7 line keys on key matrix is touched.
OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN9, AN10, AN11, P41 and
Description
Description
24
H : GND
L : -5V
16.7 msec.