AT89C51RD2 Atmel Corporation, AT89C51RD2 Datasheet
AT89C51RD2
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AT89C51RD2 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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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. ©2007 Atmel Corporation. All rights reserved. Atmel tered trademarks, of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...