M16C/62P Group (M16C/62P, M16C/62PT)
1.Overview
(1)
Table 1.20
Pin Description (80-pin Version) (1)
Signal Name
Pin Name
I/O
Power
Description
Apply 2.7 to 5.5 V to the VCC1 pin and 0 V to the VSS pin.
Type Supply
(1, 2)
Power supply
input
VCC1, VSS
I
I
−
Analog power AVCC
VCC1 Applies the power supply for the A/D converter. Connect the
AVCC pin to VCC1. Connect the AVSS pin to VSS.
supply input
Reset input
CNVSS
AVSS
RESET
I
I
VCC1 The microcomputer is in a reset state when applying “L” to the this pin.
CNVSS
(BYTE)
VCC1 Switches processor mode. Connect this pin to VSS to when after a
reset to start up in single-chip mode. Connect this pin to VCC1 to
start up in microprocessor mode. As for the BYTE pin of the 80-pin
versions, pull-up processing is performed within the microcomputer.
Main clock
input
XIN
I
VCC1 I/O pins for the main clock generation circuit. Connect a ceramic
(3)
resonator or crystal oscillator between XIN and XOUT . To use
the external clock, input the clock from XIN and leave XOUT
open.
Main clock
output
XOUT
O
VCC1
Sub clock input XCIN
I
VCC1 I/O pins for a sub clock oscillation circuit. Connect a crystal
(3)
oscillator between XCIN and XCOUT . To use the external
VCC1
Sub clock
output
XCOUT
O
clock, input the clock from XCIN and leave XCOUT open.
VCC2 The clock of the same cycle as fC, f8, or f32 is outputted.
VCC1 Input pins for the INT interrupt.
Clock output
CLKOUT
O
I
INT interrupt
input
INT0 to INT2
I
NMI interrupt
input
NMI
VCC1 Input pin for the NMI interrupt.
Key input
interrupt input
I
VCC1 Input pins for the key input interrupt.
KI0 to KI3
Timer A
TA0OUT,
TA3OUT,
TA4OUT
I/O
VCC1 These are Timer A0,Timer A3 and Timer A4 I/O pins. (however,
output of TA0OUT for the N-channel open drain output.)
TA0IN,TA3IN,
TA4IN
I
VCC1 These are Timer A0, Timer A3 and Timer A4 input pins.
ZP
I
I
VCC1 Input pin for the Z-phase.
Timer B
TB0IN, TB2IN
to TB5IN
VCC1 These are Timer B0, Timer B2 to Timer B5 input pins.
Serial interface
I
VCC1 These are send control input pins.
VCC1 These are receive control output pins.
VCC1 These are transfer clock I/O pins.
CTS0 to CTS1
RTS0 to RTS1
O
CLK0, CLK1,
CLK3, CLK4
I/O
RXD0 to RXD2
SIN4
I
I
VCC1 These are serial data input pins.
VCC1 This is serial data input pin.
TXD0 to TXD2
O
VCC1 These are serial data output pins. (however, output of TXD2 for
the N-channel open drain output.)
SOUT3,
SOUT4
O
O
VCC1 These are serial data output pins.
CLKS1
VCC1 This is output pin for transfer clock output from multiple pins
function.
2
I C mode
SDA0 to SDA2 I/O
SCL0 to SCL2 I/O
VCC1 These are serial data I/O pins. (however, output of SDA2 for the
N-channel open drain output.)
VCC1 These are transfer clock I/O pins. (however, output of SCL2 for
the N-channel open drain output.)
I : Input O : Output I/O : Input and 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.
Rev.2.41 Jan 10, 2006 Page 28 of 96
REJ03B0001-0241
RENESAS [ RENESAS TECHNOLOGY CORP ]
