M16C1N Datasheet, PDF (18/238 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/10 SERIES

M16C/1N Group
1. Overview
1.6 Pin Description
Table 1.3 shows the pin description.
Table 1.3 Pin Description
Pin name
VCC, VSS
IVCC
CNVSS
RESET
XIN
XOUT
VREF
P00 to P07
P10 to P17
P20 to P21
Signal name I/O type
Function
Power supply Input
input
Supply 4.2 to 5.5 V to the VCC pin. Supply 0 V to the VSS pin.
IVCC
Input
Connect a capacitor (0.1 µF) between this pin and VSS.
CNVSS
Input
Connect it to the VSS pin via resistance (about 5 kΩ).
Reset input Input
A "L" on this input resets the microcomputer.
Clock input Input
Clock output Output
Reference
Input
voltage input
These pins are provided for the main clock oscillation circuit.
Connect a ceramic resonator or crystal between the XIN and
XOUT pins. To use an externally derived clock, input it to the XIN
pin and leave the XOUT pin open.
This pin is a reference voltage input for the A/D converter.
I/O port P0
I/O port P1
Input/output
This is an 8-bit CMOS I/O port. It has an input/output port
direction register that allows the user to set each pin for input or
output individually. When set for input, the user can specify in
units of four bits via software whether or not they are tied to a
pull-up resistor. These pins are shared with analog input pins.
P02 and P03 function as CAN0 I/O pins by using software.
Input/output
This is an 8-bit I/O port equivalent to P0. P10 to P13 are shared
with analog inputs and key input interrupts. P14 to P16 are
shared with serial I/O pins. P17 is shared with timer input. Can
be used as an LED drive port.
I/O port P2 Input/output This is a 2-bit I/O port equivalent to P0.
P30 to P37
P40 to P47
P50 to P52
I/O port P3
I/O port P4
I/O port P5
Input/output This is a 8-bit I/O port equivalent to P0. P30 to P33 are shared
with timer input/output. P34 to P37 are shared with serial I/O.
P34 is shared with analog outputs.
Input/output
This is a 8-bit I/O port equivalent to P0. P40 to 41 are shared
with analog inputs. P42 to P45 are shared with interrupt inputs.
P46 to P47 are shared with the I/O pin of the clock oscillation
circuit for the clock.
Input/output This is a 3-bit I/O port equivalent to P0. P50 and P51 function as
CAN0 I/O pins by using software.
Rev.1.00 Oct 20, 2004 page 6 of 222
REJ09B0007-0100Z