Read Sharp AR-280 (serv.man3) Handy Guide online
Parallel Communication
,Q3DUDOOHOFRPPXQLFDWLRQHLJKWELWVRIGDWDDUHVLPXOWDQHRXVO\VHQWIURPD3&WRDQH[WHUQDO
GHYLFH VXFK DV D SULQWHU 7KHUH DUH ILYH FXUUHQW SDUDOOHO FRPPXQLFDWLRQ PRGHV DYDLODEOH
ZLWKLQWKHPDUNHW(DFKRIWKHVHDUHEULHIO\H[SODLQHGEHORZ
7KH$5LVFDSDEOHRIFRPPXQLFDWLQJLQ&RPSDWLELOLW\0RGHRU1LEEOH0RGH)RUWKH
FRSLHUWRFRPPXQLFDWHLQ1LEEOH0RGHDQ,(((FRPSDWLEOH&HQWURQLFVFDEOHPXVWEH
XVHGDQGWKH3&PXVWDOVREHFDSDEOHRIFRPPXQLFDWLQJLQWKLVWKHPRGH,I1LEEOH0RGH
FDQQRWEHXVHGERWKWKH3&DQGWKH$5ZLOOFRPPXQLFDWHLQ&RPSDWLELOLW\0RGH
Compatibility Mode
2QH ZD\ GLUHFWLRQ RQO\ 0DFKLQHV ZLWK XQOLPLWHG VSHHG RU DQ XQOLPLWHG LQWHUQDO
EXIIHUZRXOGZRUNZLWKWKLVPRGH7KH3&ZLOOGRZQORDGGDWDDVTXLFNDVLWFDQ7R
FRQWUROGDWDIORZDQXPEHURIIHHGEDFNVLJQDOVDUHXVHGWRWHOOLIGDWDLVSLOOLQJXS
SDSHUHPSW\SULQWHURQHWF
Nibble Mode
$V\PPHWULFWZRZD\GDWDVRWKDWWKHSULQWHUFDQWDONEDFN)RXUELWVIRUIHHGEDFN
'DWDIORZVIDVWHUWRSULQWHUWKDQEDFNWR3&7KLVLVEHFDXVHWKHIORZEDFNWRWKH3&
LVLQIRXUELWV 1RUPDOO\ ILYH VLJQDOV DUH XVHG IRU IHHGEDFN EDFN WR 3& ,Q QLEEOH
PRGHIRXURIWKHVHDUHUHDVVLJQHGVRWKDWWKHSULQWHUFDQIHHGWKHELGLUHFWLRQDOGDWD
EDFN,Q1LEEOH0RGHWKH3&WDNHVIXOOFRQWURORIWKHSRUW7KLVLVWKHOHDVWDWWUDFWLYH
%LGLUHFWLRQDOPHWKRG
Byte Mode
)XOO V\PPHWULFDO WZRZD\ FRPPXQLFDWLRQ (LJKW ELWV XVHG IRU IHHGEDFN 6SHFLDO
KDUGZDUHLVUHTXLUHG$OOHLJKWGDWDOLQHVKDYHLQOLQHEXIIHUVVRWKDWDVVRRQDVGDWDLV
VHQWRQHZD\DOOHLJKWOLQHVFDQWKHQEHXVHGIRUWKHUHYHUVHGLUHFWLRQ$ORWTXLFNHU
WKDQQLEEOHPRGH
Enhanced Parallel Port (EPP)
,%0;LUFRP =HQLWK'DWD6\VWHPVGHYHORSHGLQ
ELWZRUGVDUHVHQWDWRQFHDQGWKHQDUHFRQYHUWHGUHSDFNDJHGLQWR[ELWE\WH
WUDQVIHUV6L[VLJQDOVDUHXVHGIRUGDWDFRQWURO(33PDNHVWKHSRUWEHFRPHDWUXH
H[SDQVLRQEXV6SHHGLVLQFUHDVHGXSWRWLPHVIDVWHUWKDQWKHSUHYLRXVWKUHHPRGHV
Extended Capabilities Port (ECP)
+HZOHWW 3DFNDUG 0LFURVRIW GHYHORSHG D XQLYHUVDO H[SDQVLRQ VWDQGDUG DQG (&3
)LUVWUHOHDVH1RY $V SUHYLRXV PRGHV KRZHYHU (&3 JLYHV FRQWURO DV ZHOO DV
VSHHG7RWKH3&WUDQVIHUVDUHPRGHUDWHG E\ FORVHG ORRS KDQGVKDNLQJ 7ZR H[WUD
DGGLWLRQV RYHU (33 DUH )DVW WZR ZD\ FRPPXQLFDWLRQ 7ZR ZD\ PRGH ZLWK GDWD
FRPSUHVVLRQ
(&3FDQGHWHUPLQHZKDWVSHHGERWKGHYLFHVFDQVSHDNDQGWKHQFKRRVHWKHEHVW(&3
LQFOXGHVHUURUGHWHFWLRQDQGGHYLFHKDQGVKDNLQJ$OOE\WHVZLOOJHWWRWKHLUGHVWLQDWLRQ
HYHQLIWKHFRQQHFWLRQLVWHPSRUDULO\GLVUXSWHG
Click on the first or last page to see other AR-280 (serv.man3) service manuals if exist.