STMicroelectronics AN4035 Flash Programming via Nexus/JTAG Application Note

This application note describes how to program the Flash of SPC56x devices through the Nexus/JTAG protocol.

Brand: STMicroelectronics
Category: microcontrollers
Document type: Application Note
Language: English
Pages: 41
File format: PDF
File size: 634 KB
Published: 06 August, 2012
Updated: 01 October, 2023
MD5 checksum: A8833BE7E3F8F97652B9812911694D58
PDF: STMicroelectronics AN4035 Flash Programming via Nexus/JTAG Application Note PDF

About this manual

This document details the use of the Nexus debug interface to program the internal Flash memory of the SPC56x microcontroller family using the JTAG communication protocol. It covers the JTAG signals, TAP controller state machine, and the JTAG controller architecture.

What's inside

Introduction
JTAG signals
TAP controller state machine
JTAG controller
Modes of operation
On-Chip Emulation (ONCE)
Nexus Read/Write access block
System initialization
Creating the Flash programming tool

Specifications

Supported Product Families	SPC563Mxx, SPC564Axx, SPC560Dxx, SPC560Bxx, SPC560Cxx, SPC560Pxx, SPC56ELxx
JTAG Standard Compliance	IEEE 1149.1-2001

Frequently asked questions

Which SPC56x devices support Nexus/JTAG Flash programming?

The supported products include the SPC563Mxx, SPC564Axx, SPC560Dxx, SPC560Bxx, SPC560Cxx, SPC560Pxx, and SPC56ELxx families.

What is the purpose of the JCOMP pin?

The JCOMP pin assertion allows the JTAGC to be put into a reset state.

Download PDF (634 KB)