M16C6K9 Datasheet, PDF (227/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
Port
P126, P127
P153 to P157
Pull-up selection
Direction register
Data bus
Port latch
(Note)
P21, P24 to P27, P50 to P57
P91, P97
P120 to P125
P160, P161
Data bus
Pull-up selection
Direction register
Port latch
P47
Data bus
Input to respective peripheral function
Pull-up selection
Direction register
"1"
Port latch
Output
(Note)
(Note)
P20, P22, P23, P30 to P37
P150 to P152, P64 to P67, P90, P92
Data bus
Pull-up selection
Direction register
"1"
Port latch
Output
(Note)
Input to respective peripheral function
Note.
symbolizes a parasitic diode.
Do not apply a voltage higher than Vcc to each port.
Fig.UA-2 Programmable I/O ports (2)
Rev.1.00 Jun 06, 2003 page 227 of 290