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M16C/62P Group (M16C/62P, M16C/62PT)
Table 1.13 Pin Description (80-pin Version) (1)
Signal Name
Pin Name I/O Type
Power supply input
VCC1,
VSS
Analog power
AVCC,
supply input
AVSS
____________
Reset input
RESET
CNVSS
CNVSS
(BYTE)
Main clock input
XIN
Main clock output
XOUT
Sub clock input
XCIN
Sub clock output
XCOUT
Clock output
CLKOUT
______
________
INT interrupt input
INT0 to INT2
_______
_______
NMI interrupt input
NMI
______
Key input interrupt
KI0 to KI3
input
Timer A
TA0OUT,
TA3OUT,
TA4OUT
TA0IN,
TA3IN,
TA4IN
ZP
Timer B
TB0IN,
TB2IN to TB5IN
_________ _________
Serial I/O
CTS0, CTS2
_________ _________
RTS0, RTS2
CLK0, CLK1,
CLK3, CLK4
RXD0 to RXD2
SIN4
TXD0 to TXD4
SOUT3, SOUT4
CLKS1
2
I
C mode
SDA0 to SDA2
SCL0 to SCL2
I : Input
O : Output
NOTES:
1. In this manual, hereafter, VCC refers to VCC1 unless otherwise noted.
2. In M16C/62PT, apply 4.0 to 5.5 V to the VCC1 pin.
3. Ask the oscillator maker the oscillation characteristic.
R
e
. v
2
3 .
0
S
e
p
0
, 1
2
0
0
4
R
E
J
0
9
B
0
1
8
5
0 -
2
3
0
Z
Power
Supply
I
-
I
VCC1
I
VCC1
I
VCC1
I
VCC1
O
VCC1
I
VCC1
O
VCC1
O
VCC2
________
I
VCC1
I
VCC1
______
I
VCC1
I/O
VCC1
I
VCC1
I
VCC1
I
VCC1
I
VCC1
O
VCC1
I/O
VCC1
I
VCC1
I
VCC1
O
VCC1
O
VCC1
O
VCC1
I/O
VCC1
I/O
VCC1
I/O : Input and output
page 20
f o
3
6
4
Apply 2.7 to 5.5 V to the VCC1 pin and 0 V to the VSS pin.
Applies the power supply for the A/D converter. Connect the AVCC pin to
VCC1. Connect the AVSS pin to VSS.
The microcomputer is in a reset state when applying "L" to the this pin.
Switches processor mode. Connect this pin to V
start up in single-chip mode. Connect this pin to V
cessor mode. As for the BYTE pin of the 80-pin versions, pull-up processing
is performed within the microcomputer.
I/O pins for the main clock generation circuit. Connect a ceramic resonator or
crystal oscillator between XIN and XOUT
the clock from XIN and leave XOUT open.
I/O pins for a sub clock oscillation circuit. Connect a crystal oscillator between
(3)
XCIN and XCOUT
. To use the external clock, input the clock from XCIN
and leave XCOUT open.
The clock of the same cycle as fC, f8, or f32 is outputted.
______
Input pins for the INT interrupt
_______
Input pin for the NMI interrupt.
Input pins for the key input interrupt
These are timer A0, timer A3 and Timer A4 I/O pins. (except the output of
TAOUT for the N-channel open drain output.)
These are timer A0, timer A3 and Timer A4 input pins.
Input pin for the Z-phase.
These are timer B0, timer B2 to timer B5 input pins.
These are send control input pins.
These are receive control output pins.
These are transfer clock I/O pins.
These are serial data input pins.
These are serial data input pins.
These are serial data output pins. (except TXD2 for the N-channel open drain
output.)
These are serial data output pins.
This is output pin for transfer clock output from multiple pins function.
These are serial data I/O pins. (except SDA2 for the N-channel open drain
output.)
These are transfer clock I/O pins. (except SCL2 for the N-channel open drain
output.)
Description
(2)
to when after a reset to
SS
to start up in micropro-
CC1
(3)
. To use the external clock, input
1. Overview
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