R5F64112DFB datasheet(24/108 Pages) RENESAS

24 / 108 page

R01DS0062EJ0120 Rev.1.20

Page 24 of 99

Sep 26, 2011

R32C/111 Group

1. Overview

1.5

Pin Definitions and Functions

Table 1.15 to Table 1.21 show the pin definitions and functions.

Table 1.15

Pin Definitions and Functions for the 100-pin Package (1/4)

Function

Symbol

I/O

Power

Supply

Description

Power supply

VCC1, VCC2,

VSS

I—

Applicable as follows: VCC1 and VCC2 = 3.0 to

5.5 V (VCC1

≥ VCC2), VSS = 0 V

Connecting pins

for decoupling

capacitor

VDC0, VDC1

——

A decoupling capacitor for internal voltage should

be connected between VDC0 and VDC1

Analog power

supply

AVCC, AVSS

VCC1

Power supply for the A/D converter. AVCC and

AVSS should be connected to VCC1 and VSS,

respectively

Reset input

RESET

VCC1

The MCU is reset when this pin is driven low

CNVSS

VCC1

This pin should be connected to VSS via a resistor

Debug port

NSD

I/O

VCC1

This pin is to communicate with a debugger. It

should be connected to VCC1 via a resistor of 1 to

4.7 k

Main clock input

XIN

VCC1

Input/output for the main clock oscillator. A crystal,

or a ceramic resonator should be connected

between pins XIN and XOUT. An external clock

should be input at the XIN while leaving the XOUT

open

Main clock output XOUT

VCC1

Sub clock input

XCIN

VCC1

Input/output for the sub clock oscillator. A crystal

oscillator should be connected between pins XCIN

and XCOUT. An external clock should be input at

the XCIN while leaving the XCOUT open

Sub clock output XCOUT

VCC1

BCLK output

BCLK

VCC2

BCLK output

Clock output

CLKOUT

VCC2

Output of the clock with the same frequency as

low speed clocks, f8, or f32

External interrupt

input

INT0 to INT5

VCC1

VCC2

Input for external interrupts

NMI input

P8_5/

NMI

VCC1

Input for NMI

Key input interrupt

KI0 to KI3

VCC1

Input for the key input interrupt

Bus control pins

D0 to D7

I/O

VCC2

Input/output of data (D0 to D7) while accessing an

external memory space with a separate bus

D8 to D15

I/O

VCC2

Input/output of data (D8 to D15) while accessing

an external memory space with 16-bit separate

bus

A0 to A23

VCC2

Output of address bits A0 to A23

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