R8C/13 Group
15. Programmable I/O Ports
Pull-up selection
Direction
P0
0
regiister
"1"
Output
Data bus
Port latch
(Note 1)
Analog input
Pull-up selection
Direction
P0
1
to P0
7
register
Data bus
Port latch
(Note 1)
Analog input
Pull-up selection
Direction
P1
0
to P1
2
register
"1"
Output
Port latch
Data bus
(Note 1)
Select drive capacity
Input to respective peripheral functions
Analog Input
NOTES:
1.
symbolizes a parasitic diode.
Make sure the input voltage on each pin will not exceed Vcc.
Figure 15.1 Programmable I/O Ports (1)
Rev.1.20 Jan 27, 2006 page 138 of 205
REJ09B0111-0120