T89C51CC01CA ATMEL [ATMEL Corporation], T89C51CC01CA Datasheet
T89C51CC01CA
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T89C51CC01CA Summary of contents
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... IEx flag is not cleared by hardware after servicing interrupt. In this case, the CPU executes the ISR a second time. Workaround The workaround is to clear IEx bit in Interrupt subroutine. INT1_ISR : CLR IE1 .... ; Interrupt sub routine 80C51 MCUs T89C51CC01UA T89C51CC01CA Errata Sheet Rev. 4131C–8051–11/02 1 ...
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Movc Instruction on Boot Memory from Boot Memory Does Not Work No movc instruction is performed when a program running on the boot memory tries to read its own code using a movc instruction. Workaround None. 5. Power OFF ...
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CAN – CANCONCH Harmless Corruption The fix for Errata number 6 (Lost CAN Error Interrupt), fixes the problem. However, when the stuff error occurs, the CONCH1, CONCH0 bits in CANCONCH are corrupted. This corruption has no effect on the ...
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Active UART Bootloader Errata List • Timer 2 and UART Are Not Stopped • Watchdog and Flash API Starting the Bootloader Execution • Autobaud False Start Bit Detection • Boot Process Compatibility • Flash api “__api_wr_code_page” with 0 data in ...
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Workaround A ‘Special Sync’ can be used with ‘FLIP’ software. In this case, the open port event and the ‘U’ sent are dissociated. The user must first open his COM port with the ‘con- nect’ button, then reset its hardware ...
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Flash API “__api_wr_code_page” with 0 data in length parameter field When the flash api “__api_wr_code_page” is called with the field nb_data equal 0 then 255 data are wrote in flash. Workaround Include a test on nb_data before executed __api_wr_code_page ...
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Active CAN Bootloader Errata List • The CAN is Not Stopped • Watchdog and Flash API Starting the Bootloader Execution • Flash api “__api_wr_code_page” with 0 data in length parameter field CAN Bootloader Errata History Version Number 1.0.4 CAN Bootloader ...
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Atmel Headquarters Corporate Headquarters 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 487-2600 Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland TEL (41) 26-426-5555 FAX (41) 26-426-5500 Asia Room 1219 Chinachem ...