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R -540DW
LSI(IXA029DR)
The I/O signal of the LSI(IXA029DR) is detailed in the following table.
Pin No.
Signal
I/O
Description
1
TIOCA2
OUT
Terminal not used.
2
A20
OUT
Terminal not used.
3
Vcc
IN
Power source voltage : +5.0V.
The power source voltage to drive LSI is input to Vcc terminal. Connected to Vcc.
4
TMO0
OUT
Signal to sound buzzer.
A: key touch sound (short beep). B: Completion sound (melody or long beep).
5
PB1
IN
Signal coming from touch key.
When either G11 line on key matrix is touched, a corresponding signal out of P93, P94,
P95, P40, P41, P42, P43 and P44 will be input into PB1. When no key is touched, the
signal is held at "H" level.
6
PB2
IN
Signal similar to PB1.
When either G12 line on key matrix is touched, a corresponding signal will be input into PB2.
7
PB3
IN
Signal similar to PB1.
When either G13 line on key matrix is touched, a corresponding signal will be input into PB3.
8
PB4
IN
Signal similar to PB1.
When either G6 line on key matrix is touched, a corresponding signal will be input into PB4.
9
PB5
IN
Signal similar to PB1.
When either G5 line on key matrix is touched, a corresponding signal will be input into PB5.
10-11
PB6-PB7
OUT
Terminal not used.
12
RESO
OUT
Terminal not used.
13
Vss
IN
Power source voltage: GND(0V).
The power source voltage to drive LSI is input to Vss terminal.
14
TxD0
OUT
Data signal is output to a memory IC (IC4).
15
P91
OUT
Clock signal is output to a memory IC (IC4).
16
RxD0
OUT
Terminal not used.
17
P93
OUT
Key strobe signal.
Signal applied to key unit section. A pulse signal is input to PB1-PB5 terminal while one
of G1 line keys on key matrix is touched.
18
P94
OUT
Key strobe signal.
Signal applied to key unit section. A pulse signal is input to PB1-PB5 and AN1 terminal
while one of G2 line keys on key matrix is touched.
19
P95
OUT
Key strobe signal.
Signal applied to key unit section. A pulse signal is input to PB1-PB5 terminal while one
of G3 line keys on key matrix is touched.
20
P40
OUT
Key strobe signal.
Signal applied to key unit section. A pulse signal is input to PB1-PB5 terminal while one
of G14 line keys on key matrix is touched.
21
P41
OUT
Key strobe signal.
Signal applied to touch screen section. A pulse signal is input to PB1-PB5 terminal while
one of G7 line keys on key matrix is touched.
22
P42
OUT
Key strobe signal.
Signal applied to touch screen section. A pulse signal is input to PB1-PB5 terminal while
one of G8 line keys on key matrix is touched.
23
P43
OUT
Key strobe signal.
Signal applied to touch screen section. A pulse signal is input to PB1-PB5 terminal while
one of G9 line keys on key matrix is touched.
24
Vss
IN
Power source voltage : GND(0V).
The power source voltage to drive LSI is input to VSS terminal.
