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AT89C51CC03 Datasheet(PDF) 3 Page - ATMEL Corporation |
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AT89C51CC03 Datasheet(HTML) 3 Page - ATMEL Corporation |
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3 / 32 page  3 4251B–CAN–03/08 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 Description Default Value BSB Boot Status Byte FFh SBV Software Boot Vector FCh SSB Software Security Byte FFh EB Extra Byte FFh CANBT1 CAN Bit Timing 1 FFh CANBT2 CAN Bit Timing 2 FFh CANBT3 CAN Bit Timing 3 FFh NNB Node Number Byte FFh CRIS CAN Re-locatable Identifier Segment FFh Manufacturer 58h Id1: Family code D7h Id2: Product Name FFh Id3: Product Revision FEh |
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