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Mitsubishi microcomputers
M16C / 62 Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Programmable I/O Port
141
Figure 1.18.1. Programmable I/O ports (1)
P00 to P07, P20 to P27,
P30 to P37, P40 to P47,
P50 to P54, P56
P10 to P14
P15 to P17
P57, P60, P61, P64, P65,
P72 to P76, P80, P81,
P90, P92
Data bus
Direction register
Pull-up selection
Port latch
Data bus
Direction register
Pull-up selection
Port latch
Port P1 control register
Direction register
Port latch
Port P1 control register
Pull-up selection
Data bus
Input to respective peripheral functions
Direction register
Port latch
Pull-up selection
Data bus
Input to respective peripheral functions
Note 1:
symbolizes a parasitic diode.
Do not apply a voltage higher than Vcc to each port.
Note 2: P1, P44 to P47, P72 to P75, P91 are not connected to external pins, but are present within the
microcomputer.
"1"
Output
(Note 1)