Appendix Standard Serial I/O Mode (Flash Memory Version)
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
183
Pin
Description
V
CC
,V
SS
Apply program/erase protection voltage to Vcc pin and 0 V to Vss pin.
CNV
SS
Connect to V
CC
when V
CC
= 4.5V to 5.5 V.
Connect to Vpp (=4.5 V to 5.5 V) when V
CC
= 2.7V to 4.5 V.
RESET
Reset input pin. While reset is "L" level, a 20 cycle or longer clock
must be input to XIN pin.
X
IN
and open X
OUT
pin.
X
OUT
AV
CC
, AV
SS
V
REF
Connect AV
SS
to V
SS
and AV
CC
to V
CC
, respectively.
Enter the reference voltage for AD from this pin.
P0
0
to P0
7
Input "H" or "L" level signal or open.
P1
0
to P1
7
Input "H" or "L" level signal or open.
P2
0
to P2
7
Input "H" or "L" level signal or open.
P3
0
to P3
5
Input "H" or "L" level signal or open.
P4
0
to P4
7
Input "H" or "L" level signal or open.
P7
0
to P7
3,
P7
5,
P7
6
Input "H" or "L" level signal or open.
P7
4
Input "H" level signal.
P7
7
P6
4
to P6
7
Input "H" or "L" level signal or open.
P6
0
Standard serial mode 1: BUSY signal output pin
Standard serial mode 2: Monitors the program operation check
P6
1
P6
2
Serial data input pin
P6
3
Serial data output pin
P8
0
to P8
7
Input "H" or "L" level signal or open.
P9
0
to P9
7
Input "H" or "L" level signal or open.
P10
0
to P10
7
Input "H" or "L" level signal or open.
Name
Power input
CNV
SS
Reset input
Clock input
Clock output
Analog power supply input
Reference voltage input
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
Input port P7
CE input
NMI input
Input port P6
BUSY output
SCLK input
RxD input
TxD output
Input port P8
Input port P9
Input port P10
I/O
I
I
I
O
I
I
I
I
I
I
I
I
I
I
O
I
I
O
I
I
I
Standard serial mode 1: Serial clock input pin
Standard serial mode 2: Input "L".
Connect a ceramic resonator or crystal oscillator between X
IN
and
X
OUT
pins. To input an externally generated clock, input it to X
IN
pin
X
CIN
Connect a crystal oscillator between X
CIN
and X
COUT
pins. To input
an externally generated clock, input it to X
CIN
pin and open X
COUT
pin.
X
COUT
Sub-clock input
Sub-clock output
I
O
P5
0
to P5
7
Input "H" or "L" level signal or open.
Input port P5
I
Connect this pin to Vcc.
P11
0
to P11
7
Input "H" or "L" level signal or open.
Input port P11
I
P12
0
to P12
7
Input "H" or "L" level signal or open.
Input port P12
I
P13
0
to P13
2
Input "H" or "L" level signal or open.
Input port P13
I
SEG
0
to SEG
15
Open when not used LCD control circuit.
Segment output
O
COM
0
to COM
3
Open when not used LCD control circuit.
Common output
O
V
L3
to V
L1
Input LCD power source. Connect V
L1
to V
SS
, V
L2
to V
CC
, V
L3
to V
CC
when not used LCD control circuit.
Power supply input for LCD
C
1
to C
2
Step-up condenser
connect port
Pins in this port function as external pin for LCD step-up condenser.
Connect a condenser between C
1
and C
2
when used LCD voltage
multiplier. Open when not used LCD voltage multiplier.
Pin functions (Flash memory standard serial I/O mode)