AT89C51RD2-RDTUM Atmel, AT89C51RD2-RDTUM Datasheet
AT89C51RD2-RDTUM
Specifications of AT89C51RD2-RDTUM
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AT89C51RD2-RDTUM Summary of contents
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... Extra Interrupt – When Timer0 mode and Timer1 in X2 mode and vice versa, extra inter- rupt may randomly occur for Timer0 or Timer1. Workaround Errata List Long Start Time – 80C51 MCUs AT89C51RD2 AT89C51ED2 Errata Sheet 4257E–8051–08/07 ...
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... The ‘Read after load’ issue leads to a wrong Opcode Fetch during the column latch load sequence. Workaround Update of the Flash API Library. A NOP instruction has to be inserted after the load instruction. MOVX @DPTR,A ;Load Column latches NOP ; ADDED INSTRUCTION AT89C51RD2/ED2 2 4257E–8051–08/07 ...
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... The PROGRAM DATA BYTE API returns the ‘0xXX’ instead of 0x00 in ACC, but the programmnig operation is sucess- fully completed. 2. API Program Data Page- Incorrect Return Value The PROGRAM DATA PAGE API returns the ‘0xXX’ instead of 0x00 in ACC, but the programmnig operation is sucess- fully completed. AT89C51RD2/ED2 3 Errata List 1,2 4257E–8051–08/07 ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...