AT89C51CC03 Просмотр технического описания (PDF) - Unspecified

Номер в каталоге

Компоненты Описание

Список матч

AT89C51CC03

CAN Microcontrollers

Unspecified 

AT89C51CC03 CAN Bootloader

ISP Communication

Management

The purpose of this process is to manage the communication and its protocol between the on-

chip bootloader and an external device (host). The on-chip bootloader implements a CAN proto-

col (see Section “Protocol”). This process translates serial communication frames (CAN) into

Flash memory accesses (read, write, erase...).

User Call Management

Several Application Program Interface (API) calls are available to the application program to

selectively erase and program Flash pages. All calls are made through a common interface (API

calls) included in the bootloader. The purpose of this process is to translate the application

request into internal Flash Memory operations.

Flash Memory

Management

This process manages low level accesses to the Flash memory (performs read and write

accesses).

Bootloader Configuration

Configuration and

Manufacturer

Information

The table below lists Configuration and Manufacturer byte information used by the bootloader.

This information can be accessed through a set of API or ISP commands.

Mnemonic

BSB

SBV

SSB

EB

CANBT1

CANBT2

CANBT3

NNB

CRIS

Manufacturer

Id1: Family code

Id2: Product Name

Id3: Product Revision

Description

Boot Status Byte

Software Boot Vector

Software Security Byte

Extra Byte

CAN Bit Timing 1

CAN Bit Timing 2

CAN Bit Timing 3

Node Number Byte

CAN Re-locatable Identifier Segment

Default Value

FFh

FCh

FFh

FFh

FFh

FFh

FFh

FFh

FFh

58h

D7h

FFh

FEh

3

4251B–CAN–03/08

Share Link: