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FX1S Datasheet, PDF (210/480 Pages) Mitsubishi Electric Semiconductor – FX1S | |||
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ÃÃÃÃÃÃÃÃÃÃ ÃÃÃÃÃÃÃ
ÃÃÃÃÃÃÃÃÃÃ
ÃÃÃÃÃÃÃÃÃÃ
6.5.8
ÃÃÃÃÃ
Ã
ÃÃÃÃÃÃ Ã ÃÃÃ
ÃÃÃÃÃ ÃÃÃÃÃÃ ÃÃÃÃ FIFO (SFWR)
SFWR (S+) (D+) n
S+
KnX,KnY,KnM,
KnS,T,C,D,V,Z
D+
KnY,KnM,KnS,
T,C,D
n
K, H
2mnm512
SFWR
FNC 38
Ãà ïèñü â ñòåêîâóþ ïà ìÿòü òèïà FIFO
CPU
FX1S
FX1N
FX2N FX2NC
©
©
©
©
Ãìï. èÃñòðóêöèÿ (P) Ãáðà áîòêà Ãà ãè ïðîãðà ììû
16 Bit 32 Bit SFWR/
©
SFWRP
7
ÃÃÃÃÃÃÃ
ÃòåÃèå ñëîâ â FIFO-ñòåêîâîé ïà ìÿòè, îïðåäåëåÃÃîé ïî èÃñòðóêöèè.
ÃÃÃÃÃÃÃÃ
b Ãà ÃÃûå èñòî÷Ãèêà (S+) ïåðåïèñûâà þòñÿ â ñòåêîâûé Ãà êîïèòåëü.
b Ãåðâûì à äðåñîì ñòåêà ÿâëÿåòñÿ (D+).
b ÃëóáèÃà ñòåêà ñîñòà âëÿåò n ñëîâ.
b à ñòåêå ìîæåò çà ïèñûâà òüñÿ ìà êñèìóì (n-1) ñëîâ, òà ê êà ê (D+) ïðèìåÃÿåòñÿ êà ê óêà çà òåëü
äëÿ Ãà êîïèòåëÿ. (D+) ïåðåä ïåðâîé èÃñòðóêöèåé äîëæåà ñáðà ñûâà òüñÿ Ãà Ãîëü.
b Ã
ñëè (n-1) ñëîâ çà ïèñûâà åòñÿ â ñòåê, ÃÃ¥ ÷èòà ÿ äðóãèõ ñëîâ, Ãåëüçÿ çà ïèñûâà òü ñëåäóþùèå
ñëîâà . Ãòî ñîñòîÿÃèå óêà çûâà åòñÿ âêëþ÷åÃèåì áèòîì ïåðåÃîñà (Carry (M8022)).
b Ãðè êà æäîì èñïîëÃÃ¥Ãèè èÃñòðóêöèè âûïîëÃÿåòñÿ ïðèðà ùåÃèå óêà çà òåëÿ (D+).
b ÃÃñòðóêöèÿ ïðèìåÃÿåòñÿ ñîâìåñòÃî ñ èÃñòðóêöèåé SFRD; ïà ðà ìåòð (n) äîëæåà áûòü îä-
èÃà êîâûì â îáåèõ èÃñòðóêöèÿõ.
SFWR-èÃñòðóêöèè
X0
[ S+ ] [ D+ ] n
SFWR (P) D0 D1 K10
S
n = 10
D0
D10 D9 D8 D7 D6 D5 D4 D3 D2 D1
ᤠᣠᢠÃêà çà òåëü
Ãèñ. 6-66. Ãðèìåð ïðîãðà ììèðîâà Ãèÿ çà ïèñè â ñòåê FIFO
C000097C
Ãðèìåð èñïîëüçîâà Ãèÿ ñì. ñòðà Ãèöó 6-70.
Ħ
6 â 68
MITSUBISHI ELECTRIC
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