(c) 2014. Renesas Electronics Corporation. All rights reserved.

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Date: Mar. 10, 2014

RENESAS TECHNICAL UPDATE

1753, Shimonumabe, Nakahara-ku, Kawasaki-shi, Kanagawa 211-8668 Japan

Renesas Electronics Corporation

Product

Category

MPU/MCU

Document

No.

Title

V850ES/Kx1, Kx1+ Restriction notification of Mask

ROM products

Information

Category

Technical Notification

Applicable

Product

V850ES/KF1

µ

PD703211

V850ES/KG1

µ

PD703215, PD703215Y

V850ES/KG1+

µ

PD703313, µPD703313Y

Lot No.

Reference

Document

-V850ES/KF1 User’s manual :

Hardware (U16891E)

-V850ES/KG1 User’s manual:

Hardware (U16890E)

-V850ES/KG1+ User’s manual:

Hardware (U16894E)

-V850ES User’s manual

For Architecture (U15943E)

All lot

This document describes a new restriction of Mask ROM products as shown by “Applicable Product”.

1. Restriction:

Applicable Usage:

The usage which meets to (1) and (2) at the same timing is applicable to the restriction.

(1) The instruction codes which addresses 001FFFCH to 0020000H are executed continuously.

(2) Pipeline disorder (Note) is generated.

Note: The pipeline becomes disordered caused by the following factors.

1. Alignment hazard

2. Referencing execution result of load instruction

3. Referencing execution result of multiply instruction

4. Referencing execution result of LDSR instruction for EIPC and FEPC

5. Access of On-chip peripheral I/O register

For details of pipeline disordered, please see User’s manual “V850ES 32-Bit Microprocessor Core

Architecture” (U15943E).

Detail of Restriction:

In the case of Applicable Usage, CPU executes the wrong instruction code.

(Example) The pipeline disordered is generated by Alignment hazard:

In this case, the instruction b will not be executed correctly. And wrong instruction code is executed.