Wiki on 8259ahttp://www.DailyFreeCode.ComWiki on 8259a - DailyFreeCode.ComCopyright @ 2010. All rights reserved.Give the different types of command words used in 8259a?http://www.DailyFreeCode.Com/InterviewFAQ/give-different-types-command-words-466.aspxSun, 10 Oct 2010 00:00:00 GMTGive the operating modes of 8259a?http://www.DailyFreeCode.Com/InterviewFAQ/give-operating-modes-8259a-467.aspxMon, 29 Mar 2010 00:00:00 GMT