M30218 Datasheet, PDF (162/179 Pages) Mitsubishi Electric Semiconductor – M30218 Group

Appendix Standard Serial I/O Mode
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Pin functions (Flash memory standard serial I/O mode)
Pin
VCC,VSS
Name
Power input
I/O
Description
Apply 5V ± 10 % to Vcc pin and 0 V to Vss pin.
CNVSS
CNVSS
I ^{Apply 12V ± 5 % to this pin.}
RESET
Reset input
I Reset input pin. While reset is "L" level, a 20 cycle or longer clock
must be input to XIN pin.
XIN
XOUT
AVCC, AVSS
Clock input
Clock output
Analog power supply input
I ^{Connect a ceramic resonator or crystal oscillator between XIN and}
XOUT pins. To input an externally generated clock, input it to XIN pin
O ^{and open XOUT pin.}
Connect AVSS to Vss and AVcc to Vcc, respectively.
VREF
P00 to P07
P10 to P17
Reference voltage input
Output port P0
Output port P1
I Enter the reference voltage for AD from this pin.
O ^{Output exclusive use pin.}
O ^{Output exclusive use pin.}
P20 to P27
P30 to P37
P40 to P43
Output port P2
Input port P3
Input port P4
O ^{Output exclusive use pin.}
I ^{Input "H" or "L" level signal or open.}
I Input "H" or "L" level signal or open.
P44
TxD output
O Serial data output pin.
P45
P46
RxD input
SCLK input
I Serial data input pin.
I ^{Serial clock input pin.}
P47
BUSY output
O BUSY signal output pin.
P50 to P57
Output port P5
O ^{Output exclusive use pin.}
P60 to P67
Output port P6
O ^{Output exclusive use pin.}
P70 to P77
Input port P7
I Input "H" or "L" level signal or open.
P80 to P87
Input port P8
I Input "H" or "L" level signal or open.
P90 to P97
Input port P9
I Input "H" or "L" level signal or open.
P100 to P107
Input port P10
I Input "H" or "L" level signal or open.
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