H8SLASH300H datasheet(37/552 Pages) RENESAS

37 / 552 page

Section 1 Overview

Rev. 3.00 May 15, 2007 Page 5 of 516

REJ09B0152-0300

Type

Symbol

Pin No. I/O

Functions

NMI

Input

NMI interrupt request pin.

Non-maskable interrupt request input pin.

In the F-ZTAT version, the level on this pin

determines whether to enter the user or boot mode

when the reset state is released. To enter the user

mode, pull up this pin to the Vcc level.

IRQ0

(22, 26)

Input

IRQ1

(14, 23)

Input

External interrupt request input pins.

Can select the rising or falling edge.

Interrupt pins

IRQAEC

Input

Interrupt input pin for the asynchronous event

counter.

This pin enables the asynchronous event input.

FTCI

Input

External event input pin.

Timer W

FTIOA to

FTIOD

13 to

I/O

Output compare output/input capture input/PWM

output pins.

AEVL

Input

AEVH

Input

Event input pins for input to the asynchronous event

counter.

Asynchro-

nous event

counter

(AEC)

AECPWM

Output

PWM output pin for the AEC.

RTC

TMOW

Output

Divided clock output pin for the RTC.

SCK3

I/O

SCI3 clock I/O pin.

RXD3/

IrRXD

Input

SCI3 data input pins or data input pins for the IrDA

format.

Serial

communi-

cation

interface 3

(SCI3)

TXD3/

IrTXD

Output

SCI3 data output pins or data output pins for the

IrDA format.

SCS

I/O

SSU chip select I/O pin.

SSCK

I/O

SSU clock I/O pin.

SSI

I/O

Synchro-

nous serial

communi-

cation unit

(SSU)

SSO

I/O

SSU transmit/receive data I/O pins.

SDA

I/O

IIC data I/O pin.

2C bus

interface 2

(IIC2)

SCL

I/O

IIC clock I/O pin.

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