M16C62A Datasheet, PDF (146/242 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Programmable I/O Port
Pull-up selection
Direction register
P87
Data bus
Port latch
Input to respective peripheral functions
P86
Data bus
Pull-up selection
Direction register
"1"
Port latch
Output
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
(Note 1)
fc
Rf
Rd
(Note 1)
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.
Figure 1.18.4. Programmable I/O ports (4)
BYTE
BYTE signal input
(Note2)
(Note1)
CNVSS
CNVSS signal input
(Note2)
(Note1)
RESET
RESET signal input
(Note1)
Note 1:
symbolizes a parasitic diode.
Do not apply a voltage higher than Vcc to each pin.
Note 2: A parasitic diode on the VCC side is added to the mask ROM version.
Do not apply a voltage higher than Vcc to each pin.
Note 3: The BYTE and CNVss pins are connected on the inside.
Figure 1.18.5. I/O pins
145