M30222 Datasheet, PDF (208/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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Specifications in this manual are tentative and subject to change
MITSUBISHI MICROCOMPUTERS
M30222 Group
Rev. G
Serial I/O Mode 1 (Flash Memory Version)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Table 1.78. Pin connections for serial I/O mode
Pin Name
Signal name
I/O
Function
Vcc, Vss
Power input
I/O Apply 2.7 to 5.5 V to Vcc pin and 0 V to the Vss pin
CNVss
CNVss
I Connect to Vcc
RESET
Reset input
I Connect Vss
Xin/Xout
Clock input
I Connect a ceramic resonator or crystal oscillator between Xin
and Xout pins. To input an externally generated clock, input it to
Xin and open Xout pin
AVcc, AVss
Analog power supply I Connect AVss to Vss and AVcc to Vcc
P3₀ to P3₇
Input port P3
I/O Input H , L , or leave open
P4₀ to P4₇
Input port P4
I/O Input H , L , or leave open
P6₀
Busy
I/O Standard serial mode 1: Busy signal output pin
Standard serial mode 2: Monitors program operation check.
P6₁
SCLK
I/O Standard serial mode 1: Serial clock input pin
Standard serial mode 2: Input L
P6₂
RxD input
I/O Serial data input pin
P6₃
TxD output
I/O Serial data output pin
P6₄ to P6₇
Input port P6
I/O Input H , L , or leave open
P7₀ to P7₇
Input port P7
I/O Input H , L , or leave open
P8₀ to P86
Input port P8
I/O Input H , L , or leave open
P9₀ to P9₇
Input port P9
I/O Input H , L , or leave open
P10₀ to P10₇ Input port P10
I/O Input H , L , or leave open
Vref
A/D Vref voltage
I Input A/D reference voltage
VL1 to VL3
LCD power supply
I/O Connect VL1 to Vss; VL2 and VL3 to Vcc when LCD is not used
C1 to C2
LCD condenser
I/O Connect a condenser between C1 and C2 when using LCD
voltage multiplier. Leave open when not used.
COM0 to COM3 COM ports
I/O Leave open
VDC
Voltage Down
Converter
0.1µF capacitor connect to Vss
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