Ïåðâàÿ ÷àñòü ïðîãðàììû ïðèìåðà èíèöèàëèçèðóåò
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;----- Ïðèåì ñèìâîëà
0029 BA 03FD MOV DX,SERIAL+5 ; Ðåãèñòð ñîñòîÿíèÿ êàíàëà
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Ôèã.8.16 Óñòàíîâêà, ïåðåñûëêà è ïîëó÷åíèå äàííûõ ïî
àñèíõðîííîìó êàíàëó (ïðîäîëæåíèå)
Ïåðâàÿ ÷àñòü ïðîãðàììû ïðèìåðà èíèöèàëèçèðóåò ìèêðîñõåìó ACE
8250. Ïåðâûì äåëîì ïðîãðàììà íàñòðàèâàåò ñêîðîñòü ðàáîòû àäàïòåðà.
Çíà÷åíèå äåëèòåëÿ, ðàâíîå 384, óñòàíàâëèâàåò ñêîðîñòü 300 áîä.
Îáðàòèòå âíèìàíèå, ÷òî ïåðåä çàïèñüþ çíà÷åíèÿ äåëèòåëÿ ïðîãðàììà
çàíîñèò 1 â áèò 7 óïðàâëÿþùåãî ðåãèñòðà ïî àäðåñó 3FBH.
Îêîí÷àòåëüíûé âûâîä â ïîðò 3FBH çàäàåò õàðàêòåðèñòèêè ëèíèè.  ýòîì
Microsoft (R) Macro Assembler Version 5.00 1/1/80 04:05:50
Ôèã. 8.17 Îáðàáîòêà ïðåðûâàíèé îò ïîñëåäîâàòåëüíîãî êàíàëà Page 1-1
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TITLE Ôèã. 8.17 Îáðàáîòêà ïðåðûâàíèé îò ïîñëåäîâàòåëüíîãî êàíàëà
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Ñîäåðæàíèå Íàçàä Âïåðåä