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LSI(IXA201DR)
The I/O signal of the LSI(IXA201DR) are detailed in the following table.
Pin No.
Signal
27
RESET
28-29
P71-P70
30
XIN
31
XOUT
32
VSS
33
P27
34
P26
35
P25
36-40
P24-P20
41
P17
42
P16
43
P15
44-48
P14-P10
49-56
P07-P00
57-60
P37-P34
61-72
SEG11-SEG0
73/74
VCC/VREF
75
AVSS
76
COM3
77
COM2
78
COM1
79
COM0
80
VL3
DESCRIPTION OF LSI
I/O
IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied.
Temporarily set to "L" level the moment power is applied, at this time the LSI is
reset. Thereafter set at "H" level.
OUT
Auto indicator (light emitting diode LD5) driving signal.
IN
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit
with respect to XIN terminal.
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
OUT
Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to P15 - P17 terminal
while one of tact switches (SW1,SW2,SW3) on matrix is touched.
OUT
Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to P15 - P17 terminal
while one of tact switches (SW4-6) on matrix is touched.
OUT
Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to P15 - P17 terminal
while one of tact switches (SW7-9) on matrix is touched.
OUT
Terminal not used.
IN
Signalcoming from touch tact switch.
When any one of tact switches SW1, SW4, SW7 on key and jog unit matrix is
touched, a corresponding signal from P25 - P27 will be input into P17. When no
tact switch is touched, the signal is held at "H" level.
IN
Signal similar to P17.
When any one of tact switches SW2, SW5, SW8 on key and jog unit matrix is
touched, a corresponding signal will be input into P16.
IN
Signal similar to P17.
When any one of tact switches SW3, SW6, SW9 on key and jog unit matrix is
touched, a corresponding signal will be input into P15.
IN
Terminal not used.
OUT
Terminal not used.
IN
Connected to AVSS
OUT
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
SEG 0 (72) .............................. S1
SEG 1 (71) .............................. S2
SEG 2 (70) .............................. S3
SEG 3 (69) .............................. S4
SEG 4 (68) .............................. S5
SEG 5 (67) .............................. S6
IN/IN
Connected to GND.
IN
Connected to VC.
OUT
Terminal not used.
OUT
Common data signal: COM3.
Connected to LCD (Pin No. 3).
OUT
Common data signal: COM2.
Connected to LCD (Pin No. 2).
OUT
Common data signal: COM1.
Connected to LCD (Pin No. 1).
IN
Power source voltage input terminal.
Standard voltage for LCD.
...
CONT
Description
LCD (Pin No.)
R-677 - 22
LSI signal (Pin No.) LCD (Pin No.)
SEG 6 (66) ........................... S7
SEG 7 (65) ........................... S8
SEG 8 (64) ........................... S9
SEG 9 (63) ......................... S10
SEG10 (62) ........................ S11
SEG11 (61) ........................ S12
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