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PIW versus IW

11/2/2010 7:49 PM	Rate (0)
ELSAVAN Posts: 24 Rating: (0)	Hi As the title shows I have encountered PIW but in some cases I saw IW .what is the difference. how the programmer decide to select one of them. is it relate to several types of process image (OB1 or PIP1,..) THNKX
ELSAVAN Posts: 24 Rating: (0)
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11/2/2010 9:13 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 1/25/2026 Posts: 12482 Rating: (2722)	Hello El Savan; There have been a few discussions of the subject on the forum, as you will find by doing a search on the forum pages (see the searchbox at the top right of the page?). One of the best answers can be found in the following FAQ: Where and when do you need peripheral addressing? Hope this helps, Daniel Chartier

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This contribution was helpful to 1 thankful Users ELSAVAN