M16C6N4 Datasheet, PDF (29/406 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

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M16C/6N Group (M16C/6N4)
1. Overview
Table 1.7 Pin Description (3)
Signal Name
Pin Name
I/O Type
Description
I/O port
P0_0 to P0_7
I/O 8-bit I/O ports in CMOS, having a direction register to select
P1_0 to P1_7
an input or output.
P2_0 to P2_7
Each pin is set as an input port or output port. An input port
P3_0 to P3_7
can be set for a pull-up or for no pull-up in 4-bit unit by
P4_0 _to P4_7
program.
P5_0 to P5_7
(however, P7_1 and P9_1 for the N-channel open drain
P6_0 to P6_7
output.)
P7_0 to P7_7
P8_0 to P8_4
P8_6, P8_7
P9_0 to P9_7
Input port
P10_0 to P10_7
P8_5
_______
I Input pin for the NMI interrupt.
Pin states can be read by the P8_5 bit in the P8 register.
I: Input
O: Output
I/O: Input/Output
Rev.2.30 Oct 24, 2005 page 11 of 376
REJ09B0009-0230