AN2555 datasheet(1/33 Pages) STMICROELECTRONICS

Part #	AN2555

Description	Porting an application from the ST10F269Zx to the ST10F276Z5

PDF	33 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 33 page

July 2007

Rev 1

1/33

AN2555

Application note

Porting an application from the ST10F269Zx to the ST10F276Z5

Introduction

The ST10F276Z5 is a member of the STMicroelectronics ST10 family of 16-bit single-chip

CMOS microcontrollers. It is functionally upward compatible with the ST10F269Zx.

The goal of this document is to highlight the differences between ST10F269Zx and

ST10F276Z5 devices. It is intended for hardware or software designers who are adapting an

existing application based on the ST10F269Zx to the ST10F276Z5.

This document presents the ST10F276Z5’s modified functionalities and the new ones then it

describes the modified registers and the new registers. For each part, the differences with

the ST10F269Zx that may have an impact when replacing the ST10F269Zx by the

ST10F276Z5 are stressed and some advice is given on the way they can be handled.

This document applies from the second silicon version of the ST10F276Z5, that is from the

BA step where a new sectorization of the Flash memory was introduced. The silicon version

can be verified by reading the IDCHIP register at location 00’F07Ch. The values for these

silicon versions are 114Xh with X > 1.

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