AT89C51RD2-RDTUM Atmel, AT89C51RD2-RDTUM Datasheet
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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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