Z86C9116PSG Datasheet, PDF (30/56 Pages) Zilog, Inc. – CMOS Z8 ROMLess Microcontrollers

=&
&026 =^Š 520/HVV 0LFURFRQWUROOHUV

,QWHUUXSWV 7KH = KDV VL[ GLIIHUHQW LQWHUUXSWV IURP HLJKW GLIIHUHQW VRXUFHV 7KHVH LQWHU
UXSWV DUH PDVNDEOH DQG SULRULWL]HG 7KH  VRXUFHV DUH GLYLGHG DV IROORZV  VRXUFHV DUH
FODLPHG E\ 3RUW  OLQHV 3±3 RQH LQ 6HULDO 2XW RQH LQ 6HULDO ,Q DQG  DUH FODLPHG E\
FRXQWHUWLPHUV 7KH ,QWHUUXSW 0DVN 5HJLVWHU JOREDOO\ RU LQGLYLGXDOO\ HQDEOHV RU GLVDEOHV
WKH VL[ LQWHUUXSW UHTXHVWV:KHQ PRUH WKDQ RQH LQWHUUXSW LV SHQGLQJ SULRULWLHV DUH UHVROYHG
E\ D SURJUDPPDEOH SULRULW\ HQFRGHU WKDW LV FRQWUROOHG E\ WKH ,QWHUUXSW 3ULRULW\ UHJLVWHU
$OO LQWHUUXSWV DUH YHFWRUHG WKURXJK ORFDWLRQV LQ 3URJUDP 0HPRU\ :KHQ DQ LQWHUUXSW
UHTXHVW LV JUDQWHG WKH LQWHUUXSW PDFKLQH F\FOH LV DFWLYDWHG 7KLV UHVHWV WKH LQWHUUXSW UHTXHVW
IODJ DQG GLVDEOHV DOO RI WKH VXEVHTXHQW LQWHUUXSWV H[FHSW 3URJUDP &RXQWHU DQG 6WDWXV
)ODJV DQG EUDQFKHV WR WKH SURJUDP PHPRU\ YHFWRU ORFDWLRQ UHVHUYHG IRU WKDW LQWHUUXSW
7KLV PHPRU\ ORFDWLRQ DQG WKH QH[W E\WH FRQWDLQ WKH  ELW DGGUHVV RI WKH LQWHUUXSW VHUYLFH
URXWLQH IRU WKDW SDUWLFXODU LQWHUUXSW UHTXHVW
7R DFFRPPRGDWH SROOHG LQWHUUXSW V\VWHPV LQWHUUXSW LQSXWV DUH PDVNHG DQG WKH ,QWHUUXSW
5HTXHVW UHJLVWHU LV SROOHG WR GHWHUPLQH ZKLFK RI WKH LQWHUUXSW UHTXHVWV QHHG VHUYLFH 6RIW
ZDUH LQLWLDWHG LQWHUUXSWV DUH VXSSRUWHG E\ VHWWLQJ WKH DSSURSULDWH ELW LQ WKH ,QWHUUXSW
5HTXHVW 5HJLVWHU ,54
1HVWHG LQWHUUXSWV DUH VXSSRUWHG E\ HQDEOLQJ LQWHUUXSWV LQ WKH LQWHUUXSW VHUYLFH URXWLQH
,QWHUQDO LQWHUUXSW UHTXHVWV DUH VDPSOHG RQ WKH IDOOLQJ HGJH RI WKH ODVW F\FOH RI HYHU\
LQVWUXFWLRQ DQG WKH LQWHUUXSW UHTXHVW PXVW EH YDOLG 7S& EHIRUH WKH IDOOLQJ HGJH RI WKH ODVW
FORFN F\FOH RI WKH FXUUHQWO\ H[HFXWLQJ LQVWUXFWLRQ
:KHQ WKH GHYLFH VDPSOHV D YDOLG LQWHUUXSW UHTXHVW WKH QH[W 7S& H[WHUQDO ;7$/ FORFN
F\FOHV DUH XVHG WR SULRULWL]H WKH LQWHUUXSW DQG SXVK WKH WZR 3& E\WHV DQG WKH )/$* UHJLV
WHU RQ WKH VWDFN 7KH IROORZLQJ QLQH F\FOHV DUH XVHG WR IHWFK WKH LQWHUUXSW YHFWRU IURP
H[WHUQDO PHPRU\ 7KH ILUVW E\WH RI WKH LQWHUUXSW VHUYLFH URXWLQH LV IHWFKHG EHJLQQLQJ RQ WKH
WK 7S& F\FOH IROORZLQJ WKH LQWHUQDO VDPSOH SRLQW ZKLFK FRUUHVSRQGV WR WKH UG 7S&
F\FOH IROORZLQJ WKH H[WHUQDO LQWHUUXSW VDPSOH SRLQW
36
)XQFWLRQDO 'HVFULSWLRQ