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M16C/6N Group (M16C/6NK, M16C/6NM)
Figure20.3 I/O Ports (3)
Rev.2.00
Nov 28, 2005
REJ09B0124-0200
Pull-up selection
Direction register
Data bus
Port latch
Input to respective peripheral functions
Pull-up selection
Direction register
Port latch
Data bus
Switching between CMOS and Nch
Data bus
NMI interrupt input
Direction register
Data bus
Port latch
Input to respective peripheral functions
NOTES:
1.
Symbolizes a parasitic diode.
Make sure the input voltage on each port will not exceed VCC.
2.
Symbolizes a parasitic diode.
page 251 of 378
Switching
between
CMOS and Nch
"1"
Output
"1"
Output
20. Programmable I/O Ports
(NOTE 1)
(NOTE 1)
(NOTE 1)
(NOTE 2)
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