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KP1878BE1

Part Number KP1878BE1
Manufacturer ETC
Description KP1878BE1
Published Apr 6, 2011
Detailed Description ® ÊÐ1878ÂÅ1 ÑÏÅÖÈÔÈÊÀ ÏÎÄÊËÞ×ÅÍÈß ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ ÂÊËÞ×ÅÍÈÅ ÏÈÒÀÍÈß È ÏÓÑÊ ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ Äëÿ óïðàâëåíèÿ ïóñêîì ìèê...
Datasheet KP1878BE1




Overview
® ÊÐ1878ÂÅ1 ÑÏÅÖÈÔÈÊÀ ÏÎÄÊËÞ×ÅÍÈß ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ ÂÊËÞ×ÅÍÈÅ ÏÈÒÀÍÈß È ÏÓÑÊ ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ Äëÿ óïðàâëåíèÿ ïóñêîì ìèêðîêîíòðîëëåðà èñïîëüçóåòñÿ âíåøíèé âûâîä óñòàíîâêè è ïðîãðàììèðîâàíèÿ RST.
Åñëè íàïðÿæåíèå íà âûâîäå RST èìååò íèçêèé óðîâåíü, ìèêðîêîíòðîëëåð íàõîäèòñÿ â ñîñòîÿíèè óñòàíîâêè.
Ïîñëå ïîäà÷è íà ýòîò âûâîä âûñîêîãî óðîâíÿ íàïðÿæåíèÿ (+5 V) ïðîèñõîäèò çàïóñê íà ñ÷åò ñ÷åò÷èêà çàäåðæêè íà÷àëüíîãî ïóñêà.
Ñ÷åò÷èê çàäåðæêè íà÷àëüíîãî ïóñêà îòñ÷èòûâàåò èíòåðâàë âðåìåíè, ðàâíûé 210 èìïóëüñîâ ÷àñòîòû, ïîñòóïàþùåé ñ âûõîäà ãåíåðàòîðà òàêòîâîé ÷àñòîòû ïðîöåññîðà.
Ïîñëå çàâåðøåíèÿ îòñ÷åòà èíòåðâàëà çàäåðæêè íà÷àëüíîãî ïóñêà öåíòðàëüíûé ïðîöåññîð íà÷èíàåò âûïîëíÿòü ïðîöåäóðó ïðåðûâàíèÿ ïî ...






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