M16C28 Datasheet, PDF (306/423 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/28 Group (M16C/28, M16C/28B)
17. Programmable I/O Ports
P63, P67
Data bus
Pull-up selection
Direction register
“1”
Port latch
Output
Switching between CMOS and Nch
Pull-up selection
P85
NMI Enable
Direction register
Data bus
Port latch
NMI Interrupt Input
NMI Enable
SD
Digital Debounce
P97, P104 to P107
Pull-up selection
Direction register
Data bus
Port latch
Analog input
Input to respective peripheral functions
NOTES:
1.
symbolizes a parasitic diode.
Make sure the input voltage on each port will not exceed Vcc.
Figure 17.3 I/O Ports (3)
(1)
(1)
(1)
Rev. 2.00 Jan. 31, 2007 ^{page 286} of 385
REJ09B0047-0200