Mitsubishi microcomputers
M16C / 62 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Appendix Standard Serial I/O Mode (Flash Memory Version)
Pin functions (Flash memory standard serial I/O mode)
Pin
Name
Description
Apply program/erase protection voltage to Vcc pin and 0 V to Vss pin.
Connect to Vcc pin.
I/O
Power input
V
CC,VSS
CNVSS
CNVSS
RESET
I
I
Reset input
Reset input pin. While reset is "L" level, a 20 cycle or longer clock
must be input to XIN pin.
X
IN
Connect a ceramic resonator or crystal oscillator between XIN and
Clock input
I
O
I
XOUT pins. To input an externally generated clock, input it to XIN pin
X
OUT
Clock output
and open XOUT pin.
Connect this pin to Vcc or Vss.
BYTE
AVCC, AVSS
REF
BYTE
Connect AVSS to Vss and AVcc to Vcc, respectively.
Analog power supply input
Reference voltage input
Input port P0
V
Enter the reference voltage for AD from this pin.
Input "H" or "L" level signal or open.
I
P0
P1
P2
P3
P4
0
0
0
0
0
to P0
to P1
to P2
to P3
to P4
7
7
7
7
7
I
I
I
I
I
I
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input port P1
Input port P2
Input port P3
Input port P4
P5
P56, P5
1 to P54,
Input port P5
7
Input "H" level signal.
P5
0
5
CE input
I
I
Input "L" level signal.
P5
EPM input
Input "H" or "L" level signal or open.
BUSY signal output pin
P6
0
to P63
Input port P6
BUSY output
SCLK input
RxD input
I
P6
P6
P6
P6
4
5
6
7
O
I
Serial clock input pin
Serial data input pin
I
Serial data output pin
TxD output
Input port P7
Input port P8
O
I
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
P70
to P77
P8
P8
0
7
to P84, P86,
I
P85
NMI input
Connect this pin to Vcc.
I
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
P9
0
to P9
7
Input port P9
Input port P10
I
I
P10
0
to P10
7
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