Renesas H8/3847R Series Hardware Manual page 9

8-bit single-chip microcomputer super low power

Table of Contents

1.3.2 Pin Functions

Table 1.6 Pin

8.3.1 Overview

8.3.4 Pin States

Table 8.7 Port 2 Pin

Main Revisions for this Edition

Revision (See Manual for Details)

"Under development" indication deleted from H8/38447 Group

6. During a break, the watchdog timer continues to operate.

Therefore, an internal reset is generated if an overflow occurs

during the break.

Table amended

Description amended

Port 2 is an 8-bit I/O port. Figure 8.2 shows its pin configuration.

In the F-ZTAT version, the on-chip pull-up MOS for pin P2

during the reset period. It turns off and normal operation resumes

after the reset is cleared. The pull-up MOS is controlled by

hardware; it cannot be manipulated by a user program. This

should be considered when making connections to external

circuitry. Note that the mask ROM and ZTAT versions do not have

this function.

Table and notes amended

Notes: 1. Applies to the F-ZTAT version of the H8/38347 Group and H8/38447 Group.

2. Applies to H8/3847R Group and H8/3847S Group. Also applies to the mask ROM

version of the H8/38347 Group and H8/38447 Group.

Rev. 6.00 Aug 04, 2006 page vii of xxxvi

Name and Functions

Test pin: This pin is reserved and

cannot be used. It should be

connected to V