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R-212M 16
DESCRIPTION OF LSI
LSI(IZA948DR)
The I/O signal of the LSI(IZA948DR) are detailed in the following table.
The I/O signal of the LSI(IZA948DR) are detailed in the following table.
17
INT1
IN
Signal to synchronize LSI with commercial power source frequency.
This is basic timing for all real time
processing of LSI.
This is basic timing for all real time
processing of LSI.
18-19
AIN0-AIN1
IN
Terminal to change functions according to the model.
Signal in accordance with the model in operation is applied to set up its function.
Signal in accordance with the model in operation is applied to set up its function.
20
AIN2
IN
Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal.
Door opened; "L" level signal.
Door closed; "H" level signal.
Door opened; "L" level signal.
21
AIN3
IN
Terminal to change functions according to the model.
Signal in accordance with the model in operation is applied to set up its function.
Signal in accordance with the model in operation is applied to set up its function.
22
P00
OUT
Digit selection signal.
Signal is input to the anodes of the light-emitting diodes (LD30 - LD34).
Signal is input to the anodes of the light-emitting diodes (LD30 - LD34).
23
P01
OUT
Digit selection signal.
Signal is input to the anodes of the light-emitting diodes (LD9 - LD16).
Signal is input to the anodes of the light-emitting diodes (LD9 - LD16).
24
P02
OUT
Digit selection signal.
Signal is input to the anodes of the light-emitting diodes (LD17 - LD24).
Signal is input to the anodes of the light-emitting diodes (LD17 - LD24).
25
P03
OUT
Digit selection signal.
Signal is input to the anodes of the light-emitting diodes (LD1 - LD8).
Signal is input to the anodes of the light-emitting diodes (LD1 - LD8).
26
P10
OUT
Segment data signal.
Signal is input to the cathodes of the light-emitting diodes (LD1, LD9, LD17 and
LD30).
Signal is input to the cathodes of the light-emitting diodes (LD1, LD9, LD17 and
LD30).
27
P11
OUT
Segment data signal.
Signal is input to the cathodes of the light-emitting diodes (LD2, LD10, LD18 and
LD31).
Signal is input to the cathodes of the light-emitting diodes (LD2, LD10, LD18 and
LD31).
28
P12
OUT
Segment data signal.
Signal is input to the cathodes of the light-emitting diodes (LD3, LD11, LD19 and
LD32).
Signal is input to the cathodes of the light-emitting diodes (LD3, LD11, LD19 and
LD32).
29
P13
OUT
Segment data signal.
Signal is input to the cathodes of the light-emitting diodes (LD4, LD12 and LD20).
Signal is input to the cathodes of the light-emitting diodes (LD4, LD12 and LD20).
30
D0
OUT
Segment data signal.
Signal is input to the cathodes of the light-emitting diodes (LD5, LD13, LD21 and
LD33).
Signal is input to the cathodes of the light-emitting diodes (LD5, LD13, LD21 and
LD33).
31
D1
OUT
Segment data signal.
Signal is input to the cathodes of the light-emitting diodes (LD6, LD14, LD22 and
LD34).
Signal is input to the cathodes of the light-emitting diodes (LD6, LD14, LD22 and
LD34).
32
D2
OUT
Segment data signal.
Signal is input to the cathodes of the light-emitting diodes (LD7, LD15 and LD23).
Signal is input to the cathodes of the light-emitting diodes (LD7, LD15 and LD23).
Pin No.
Signal
I/O
Description
20 msec
H : GND
L (-5V)
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