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Part number
KP1878BE1
Manufacturer
Unknown Manufacturer
File Size
108.38 KB
Description
KP1878BE1
Datasheet
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® ÊÐ1878ÂÅ1 ÑÏÅÖÈÔÈÊÀ ÏÎÄÊËÞ×ÅÍÈß ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ ÂÊËÞ×ÅÍÈÅ ÏÈÒÀÍÈß È ÏÓÑÊ ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ Äëÿ óïðàâëåíèÿ ïóñêîì ìèêðîêîíòðîëëåðà èñïîëüçóåòñÿ âíåøíèé âûâîä óñòàíîâêè è...
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àâëåíèÿ 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 íà÷àëüíîìó ïóñêó ñ âåêòîðîì ïðåð
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KP1878BE1 Datasheet
