
Pin Description
Unde
deeopmen
Preliminary Specifications REV.E
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30220 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
7
Pin Description
Signal name
Function
Pin name
I/O
I/O
I/O
I/O
I/O
I/O port P7
I/O port P8
I/O port P9
I/O port P10
P7
0
to P7
6
P8
0
to P8
7
P9
0
to P9
7
P10
0
to P10
7
This is an 8-bit I/O port equivalent to P0. Pins in this port also
function as A-D converter analog input pins as selected by
software.
This is an 8-bit I/O port equivalent to P0. Pins in this port also
function as SEG output for LCD as selected by software.
P7
7
I
This is an 3-bit I/O port equivalent to P0. Pins in this port also
function as D-A converter analog output pins or start trigger for
A-D input pins.
I/O
I/O port P11
P11
0
to P11
7
This is an 8-bit I/O port equivalent to P0. Pins in this port also
function as SEG output for LCD as selected by software.
I/O
I/O port P13
P13
0
to P13
2
O
Segment
output
SEG
0
to
SEG
15
Pins in this port function as SEG output for LCD drive circuit.
O
Common
output
COM
0
to
COM
3
Power supply input for LCD drive circuit.
Power supply
input for LCD
VL
1
to VL
3
Pins in this port function as common output for LCD drive circuit.
Step-up
condenser
connect port
C
1
, C
2
Pins in this port function as external pin for LCD step-up
condenser. Connect a condenser between C
1
and C
2
.
I/O
I/O port P12
P12
0
to P12
7
This is an 8-bit I/O port equivalent to P0. Pins in this port also
function as SEG output for LCD and real time port output.
This is a 8-bit I/O port equivalent to P0. Pins in this port also
function as timer A4 to A7 I/O pins, INT
5
input pin as selected by
software.
P7
0
to P7
6
are I/O ports equivalent to P0 (P7
0
and P7
1
are N
channel open-drain output).
Pins in this port also function as UART2 I/O pin, INT
0
to INT
2
input pins as selected by software.
P7
7
is an input-only port that also functions for NMI.