AN2555 Datasheet, PDF (1/33 Pages) STMicroelectronics – Porting an application from the ST10F269Zx to the ST10F276Z5

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.
July 2007
Rev 1
1/33
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