M16C1N Datasheet, PDF (169/238 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/10 SERIES

M16C/1N Group
P16, P17
Data bus
Pull-up selection
Direction register
"1"
Port latch
output
Input to respective peripheral functions
P20, P21
P52
Pull-up selection
Direction register
Data bus
Port latch
17. Programmable I/O Ports
(Note 1)
P1x driving capacity
(Note 1)
P34
Data bus
D/A output enable
Pull-up selection
Direction register
"1"
Port latch
output
(Note 1)
Analog input
D/A output enable
Note 1: Do not apply a voltage higher than Vcc to each port.
Figure 17.2 Programmable I/O ports (2)
Rev.1.00 Oct 20, 2004 page 157 of 222
REJ09B0007-0100Z