M30222 Datasheet, PDF (177/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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MITSUBISHI MICROCOMPUTERS
M30222 Group
Rev. G
I/O Ports
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Unused Pins
Table 1.56. Example of connections for unused pins
Pin Name
Connection
Ports P3 to P10
(excluding P5, P8₃, P8₇)
Xout (Note)
NMI
AVcc
AVss, V_REF
C1, C2
VL2, VL3
VL1
CNVss
COM₀ to COM₃
SEG₀ to SEG₂₃
After setting for input mode, enable internal pull-up resistors or connect every pin to Vss
cia a resistor. Or, after setitng for output mode, leave these pins open.
Open
Connect to Vcc via pull-up resistor
Connect Vcc
Connect to Vss
Open
Connect to Vcc
Connect to Vss
Connect to Vss via pull-up resistor
Open
Open
Note: With external clock input to Xin pin.
Open
Open
Open
Microcomputer
Port P3 to P10 (except for P5, P83)
(Input mode)
···
(Input mode)
(Output mode)
···
Open
Xcout
COM0 to COM3
SEG0 to SEG23
NMI
XOUT
AV CC
VL3
VL2
VL1
AV SS
VREF
Open
VCC
CNVss
C1, C2
Open
VSS
Fig. 1.148. Example of connections for unused pins
1-178