R8C/13 Group
15. Programmable I/O Ports
Pull-up selection
Direction
P13
register
Port latch
Data bus
(Note 1)
Select drive capacity
Input to respective peripheral functions
Analog Input
Pull-up selection
P14
Direction
register
"1"
Output
Port latch
Data bus
(Note 1)
Select drive capacity
Pull-up selection
P15
Direction
register
Port latch
Data bus
(Note 1)
Select drive capacity
Input to respective peripheral functions
NOTES:
1.
symbolizes a parasitic diode.
Make sure the input voltage on each pin will not exceed Vcc.
Figure 15.2 Programmable I/O Ports (2)
Rev.1.20 Jan 27, 2006 page 139 of 205
REJ09B0111-0120