Features

– USB Used as a Physical Layer

– Device Firmware Upgrade Class Compliant

– Auto-Frequency Detection

– Read/Write Flash Memory

– Read Device ID

– Full-chip Erase

– Read/Write Configuration Bytes

– Security Setting from ISP Command

– Remote Application Start Command

– Read/Write Flash Memory

– Read Device ID

– Block Erase

– Read/Write Configuration Bytes

– Bootloader Start

Description

This document describes the USB bootloader functionalities as well as the USB proto-

col to efficiently perform operations on the on-chip Flash memory. Additional

information on the AT89C5132 product can be found in the AT89C5132 datasheet and

the AT89C5132 errata sheet available on the Atmel web site.

The bootloader software (binary file) currently used for production is available from the

Atmel web site.

Bootloader Revision

Purpose of Modifications

Date

Revisions 1.6.2 and higher

First release

3/25/2003

USB

Microcontrollers

AT89C5132

USB Bootloader

4256B–USB–03/06