M38002M4 Datasheet, PDF (52/173 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.1 I/O port
2.1.3 Handling of unused pins
Table 2.1.1 Handling of unused pins (in single-chip mode)
Name of Pins/Ports
Handling
P0, P1, P2, P3, P4, P5, P6, P7
XOUT
• Set to the input mode and connect to VCC or VSS
resistor of 1 k to 10 k .
• Set to the output mode and open at “L” or “H.”
Open (only when using external clock).
through a
Table 2.1.2 Handling of unused pins (in memory expansion mode and microprocessor mode)
Name of Pins/Ports
Handling
P30, P31
P4, P5, P6, P7
ONW
RESETOUT
φ
SYNC
XOUT
Open
• Set to the input mode and connect to VCC or VSS through a
resistor of 1 k to 10 k .
• Set to the output mode and open at “L” or “H.”
Connect to VCC through a resistor of 1 k to 10 k .
Open
Open
Open
Open (only when using external clock).
2-4
3800 GROUP USER’S MANUAL