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M16C5M Datasheet, PDF (24/159 Pages) Renesas Technology Corp – RENESAS MCU
M16C/5M Group, M16C/57 Group
1. Overview
1.6 Pin Functions
Table 1.17 Pin Functions (64-Pin, 80-Pin, and 100-Pin Packages)
Signal Name
Pin Name
I/O
Description
Power supply
Analog power
supply
Reset input
VCC, VSS
AVCC,
AVSS
RESET
I Apply 3.0 V to 5.5 V to the VCC pin and 0 V to the VSS pin.
Power supply for the A/D converter and D/A converter. Pins
I AVCC and AVSS should be connected to VCC and VSS,
respectively.
I Driving this pin low resets the MCU.
CNVSS
CNVSS
I Connect to VSS via a resistor.
Main clock input XIN
Main clock output XOUT
Sub clock input
Sub clock output
XCIN
XCOUT
I
Input/output for the main clock oscillator. Connect a ceramic
resonator or crystal oscillator between XIN and XOUT. (1)
To apply an external clock, connect it to XIN and leave XOUT
O open. When XIN is not used, connect XIN to VCC pin and leave
XOUT open.
I Input/output for the sub clock oscillator. Connect a crystal
O oscillator between XCIN and XCOUT. (1)
Clock output
CLKOUT
INT interrupt input
NMI input
Key input interrupt
INT0 to INT5
NMI
KI0 to KI3
O
This pin outputs the clock having the same frequency as f1, f8,
f32, or fC.
I Input for INT interrupt
I Input for NMI
I Input for the key input interrupt
Timer A
TA0OUT to
TA4OUT
TA0IN to TA4IN
I/O Timers A0 to A4 input/output
I Timers A0 to A4 input
ZP
I Input for Z-phase
Timer B
Three-phase motor
control timer
TB0IN to TB2IN
U,U,V,V,W,W
IDU, IDW, IDV, SD
I Timers B0 to B2 input
O Output for three-phase motor control timer
I Input for three-phase motor control timer
Real-time clock
Serial interface
UART0 to UART3
RTCOUT
CTS0 to CTS3
RTS0 to RTS3
CLK0 to CLK3
RXD0 to RXD3
O Output for real-time clock
I Input to control data transmission
O Output to control data reception
I/O Transfer clock input/output
I Serial data input
TXD0 to TXD3
O Serial data output
UART2
I2C mode
SDA2
SCL2
I/O Serial data input/output
I/O Transfer clock input/output
Multi-master I2C
bus
SDAMM
SCLMM
Serial data input/output
I/O
Transfer clock input/output
Note:
1. Please contact the oscillator manufacturer for oscillation characteristic.
REJ03B0267-0101 Rev.1.01
Jul 23, 2010
Page 24 of 156