I2C Interface Freescale Semiconductor 24-13 processor may need to wait until the" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� MCF5281CVM66
寤犲晢锛� Freescale Semiconductor
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 409/766闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC MPU 32BIT COLDF 256-MAPBGA
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 90
绯诲垪锛� MCF528x
鏍稿績铏曠悊鍣細 Coldfire V2
鑺珨灏哄锛� 32-浣�
閫熷害锛� 66MHz
閫i€氭€э細 CAN锛孍BI/EMI锛屼互澶恫(w菐ng)锛孖²C锛孲PI锛孶ART/USART
澶栧湇瑷�(sh猫)鍌欙細 DMA锛孡VD锛孭OR锛孭WM锛學DT
杓稿叆/杓稿嚭鏁�(sh霉)锛� 142
绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 256KB锛�256K x 8锛�
绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 闁冨瓨
RAM 瀹归噺锛� 64K x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 2.7 V ~ 3.6 V
鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� A/D 8x10b
鎸暕鍣ㄥ瀷锛� 澶栭儴
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 256-LBGA
鍖呰锛� 鎵樼洡
绗�1闋�(y猫)绗�2闋�(y猫)绗�3闋�(y猫)绗�4闋�(y猫)绗�5闋�(y猫)绗�6闋�(y猫)绗�7闋�(y猫)绗�8闋�(y猫)绗�9闋�(y猫)绗�10闋�(y猫)绗�11闋�(y猫)绗�12闋�(y猫)绗�13闋�(y猫)绗�14闋�(y猫)绗�15闋�(y猫)绗�16闋�(y猫)绗�17闋�(y猫)绗�18闋�(y猫)绗�19闋�(y猫)绗�20闋�(y猫)绗�21闋�(y猫)绗�22闋�(y猫)绗�23闋�(y猫)绗�24闋�(y猫)绗�25闋�(y猫)绗�26闋�(y猫)绗�27闋�(y猫)绗�28闋�(y猫)绗�29闋�(y猫)绗�30闋�(y猫)绗�31闋�(y猫)绗�32闋�(y猫)绗�33闋�(y猫)绗�34闋�(y猫)绗�35闋�(y猫)绗�36闋�(y猫)绗�37闋�(y猫)绗�38闋�(y猫)绗�39闋�(y猫)绗�40闋�(y猫)绗�41闋�(y猫)绗�42闋�(y猫)绗�43闋�(y猫)绗�44闋�(y猫)绗�45闋�(y猫)绗�46闋�(y猫)绗�47闋�(y猫)绗�48闋�(y猫)绗�49闋�(y猫)绗�50闋�(y猫)绗�51闋�(y猫)绗�52闋�(y猫)绗�53闋�(y猫)绗�54闋�(y猫)绗�55闋�(y猫)绗�56闋�(y猫)绗�57闋�(y猫)绗�58闋�(y猫)绗�59闋�(y猫)绗�60闋�(y猫)绗�61闋�(y猫)绗�62闋�(y猫)绗�63闋�(y猫)绗�64闋�(y猫)绗�65闋�(y猫)绗�66闋�(y猫)绗�67闋�(y猫)绗�68闋�(y猫)绗�69闋�(y猫)绗�70闋�(y猫)绗�71闋�(y猫)绗�72闋�(y猫)绗�73闋�(y猫)绗�74闋�(y猫)绗�75闋�(y猫)绗�76闋�(y猫)绗�77闋�(y猫)绗�78闋�(y猫)绗�79闋�(y猫)绗�80闋�(y猫)绗�81闋�(y猫)绗�82闋�(y猫)绗�83闋�(y猫)绗�84闋�(y猫)绗�85闋�(y猫)绗�86闋�(y猫)绗�87闋�(y猫)绗�88闋�(y猫)绗�89闋�(y猫)绗�90闋�(y猫)绗�91闋�(y猫)绗�92闋�(y猫)绗�93闋�(y猫)绗�94闋�(y猫)绗�95闋�(y猫)绗�96闋�(y猫)绗�97闋�(y猫)绗�98闋�(y猫)绗�99闋�(y猫)绗�100闋�(y猫)绗�101闋�(y猫)绗�102闋�(y猫)绗�103闋�(y猫)绗�104闋�(y猫)绗�105闋�(y猫)绗�106闋�(y猫)绗�107闋�(y猫)绗�108闋�(y猫)绗�109闋�(y猫)绗�110闋�(y猫)绗�111闋�(y猫)绗�112闋�(y猫)绗�113闋�(y猫)绗�114闋�(y猫)绗�115闋�(y猫)绗�116闋�(y猫)绗�117闋�(y猫)绗�118闋�(y猫)绗�119闋�(y猫)绗�120闋�(y猫)绗�121闋�(y猫)绗�122闋�(y猫)绗�123闋�(y猫)绗�124闋�(y猫)绗�125闋�(y猫)绗�126闋�(y猫)绗�127闋�(y猫)绗�128闋�(y猫)绗�129闋�(y猫)绗�130闋�(y猫)绗�131闋�(y猫)绗�132闋�(y猫)绗�133闋�(y猫)绗�134闋�(y猫)绗�135闋�(y猫)绗�136闋�(y猫)绗�137闋�(y猫)绗�138闋�(y猫)绗�139闋�(y猫)绗�140闋�(y猫)绗�141闋�(y猫)绗�142闋�(y猫)绗�143闋�(y猫)绗�144闋�(y猫)绗�145闋�(y猫)绗�146闋�(y猫)绗�147闋�(y猫)绗�148闋�(y猫)绗�149闋�(y猫)绗�150闋�(y猫)绗�151闋�(y猫)绗�152闋�(y猫)绗�153闋�(y猫)绗�154闋�(y猫)绗�155闋�(y猫)绗�156闋�(y猫)绗�157闋�(y猫)绗�158闋�(y猫)绗�159闋�(y猫)绗�160闋�(y猫)绗�161闋�(y猫)绗�162闋�(y猫)绗�163闋�(y猫)绗�164闋�(y猫)绗�165闋�(y猫)绗�166闋�(y猫)绗�167闋�(y猫)绗�168闋�(y猫)绗�169闋�(y猫)绗�170闋�(y猫)绗�171闋�(y猫)绗�172闋�(y猫)绗�173闋�(y猫)绗�174闋�(y猫)绗�175闋�(y猫)绗�176闋�(y猫)绗�177闋�(y猫)绗�178闋�(y猫)绗�179闋�(y猫)绗�180闋�(y猫)绗�181闋�(y猫)绗�182闋�(y猫)绗�183闋�(y猫)绗�184闋�(y猫)绗�185闋�(y猫)绗�186闋�(y猫)绗�187闋�(y猫)绗�188闋�(y猫)绗�189闋�(y猫)绗�190闋�(y猫)绗�191闋�(y猫)绗�192闋�(y猫)绗�193闋�(y猫)绗�194闋�(y猫)绗�195闋�(y猫)绗�196闋�(y猫)绗�197闋�(y猫)绗�198闋�(y猫)绗�199闋�(y猫)绗�200闋�(y猫)绗�201闋�(y猫)绗�202闋�(y猫)绗�203闋�(y猫)绗�204闋�(y猫)绗�205闋�(y猫)绗�206闋�(y猫)绗�207闋�(y猫)绗�208闋�(y猫)绗�209闋�(y猫)绗�210闋�(y猫)绗�211闋�(y猫)绗�212闋�(y猫)绗�213闋�(y猫)绗�214闋�(y猫)绗�215闋�(y猫)绗�216闋�(y猫)绗�217闋�(y猫)绗�218闋�(y猫)绗�219闋�(y猫)绗�220闋�(y猫)绗�221闋�(y猫)绗�222闋�(y猫)绗�223闋�(y猫)绗�224闋�(y猫)绗�225闋�(y猫)绗�226闋�(y猫)绗�227闋�(y猫)绗�228闋�(y猫)绗�229闋�(y猫)绗�230闋�(y猫)绗�231闋�(y猫)绗�232闋�(y猫)绗�233闋�(y猫)绗�234闋�(y猫)绗�235闋�(y猫)绗�236闋�(y猫)绗�237闋�(y猫)绗�238闋�(y猫)绗�239闋�(y猫)绗�240闋�(y猫)绗�241闋�(y猫)绗�242闋�(y猫)绗�243闋�(y猫)绗�244闋�(y猫)绗�245闋�(y猫)绗�246闋�(y猫)绗�247闋�(y猫)绗�248闋�(y猫)绗�249闋�(y猫)绗�250闋�(y猫)绗�251闋�(y猫)绗�252闋�(y猫)绗�253闋�(y猫)绗�254闋�(y猫)绗�255闋�(y猫)绗�256闋�(y猫)绗�257闋�(y猫)绗�258闋�(y猫)绗�259闋�(y猫)绗�260闋�(y猫)绗�261闋�(y猫)绗�262闋�(y猫)绗�263闋�(y猫)绗�264闋�(y猫)绗�265闋�(y猫)绗�266闋�(y猫)绗�267闋�(y猫)绗�268闋�(y猫)绗�269闋�(y猫)绗�270闋�(y猫)绗�271闋�(y猫)绗�272闋�(y猫)绗�273闋�(y猫)绗�274闋�(y猫)绗�275闋�(y猫)绗�276闋�(y猫)绗�277闋�(y猫)绗�278闋�(y猫)绗�279闋�(y猫)绗�280闋�(y猫)绗�281闋�(y猫)绗�282闋�(y猫)绗�283闋�(y猫)绗�284闋�(y猫)绗�285闋�(y猫)绗�286闋�(y猫)绗�287闋�(y猫)绗�288闋�(y猫)绗�289闋�(y猫)绗�290闋�(y猫)绗�291闋�(y猫)绗�292闋�(y猫)绗�293闋�(y猫)绗�294闋�(y猫)绗�295闋�(y猫)绗�296闋�(y猫)绗�297闋�(y猫)绗�298闋�(y猫)绗�299闋�(y猫)绗�300闋�(y猫)绗�301闋�(y猫)绗�302闋�(y猫)绗�303闋�(y猫)绗�304闋�(y猫)绗�305闋�(y猫)绗�306闋�(y猫)绗�307闋�(y猫)绗�308闋�(y猫)绗�309闋�(y猫)绗�310闋�(y猫)绗�311闋�(y猫)绗�312闋�(y猫)绗�313闋�(y猫)绗�314闋�(y猫)绗�315闋�(y猫)绗�316闋�(y猫)绗�317闋�(y猫)绗�318闋�(y猫)绗�319闋�(y猫)绗�320闋�(y猫)绗�321闋�(y猫)绗�322闋�(y猫)绗�323闋�(y猫)绗�324闋�(y猫)绗�325闋�(y猫)绗�326闋�(y猫)绗�327闋�(y猫)绗�328闋�(y猫)绗�329闋�(y猫)绗�330闋�(y猫)绗�331闋�(y猫)绗�332闋�(y猫)绗�333闋�(y猫)绗�334闋�(y猫)绗�335闋�(y猫)绗�336闋�(y猫)绗�337闋�(y猫)绗�338闋�(y猫)绗�339闋�(y猫)绗�340闋�(y猫)绗�341闋�(y猫)绗�342闋�(y猫)绗�343闋�(y猫)绗�344闋�(y猫)绗�345闋�(y猫)绗�346闋�(y猫)绗�347闋�(y猫)绗�348闋�(y猫)绗�349闋�(y猫)绗�350闋�(y猫)绗�351闋�(y猫)绗�352闋�(y猫)绗�353闋�(y猫)绗�354闋�(y猫)绗�355闋�(y猫)绗�356闋�(y猫)绗�357闋�(y猫)绗�358闋�(y猫)绗�359闋�(y猫)绗�360闋�(y猫)绗�361闋�(y猫)绗�362闋�(y猫)绗�363闋�(y猫)绗�364闋�(y猫)绗�365闋�(y猫)绗�366闋�(y猫)绗�367闋�(y猫)绗�368闋�(y猫)绗�369闋�(y猫)绗�370闋�(y猫)绗�371闋�(y猫)绗�372闋�(y猫)绗�373闋�(y猫)绗�374闋�(y猫)绗�375闋�(y猫)绗�376闋�(y猫)绗�377闋�(y猫)绗�378闋�(y猫)绗�379闋�(y猫)绗�380闋�(y猫)绗�381闋�(y猫)绗�382闋�(y猫)绗�383闋�(y猫)绗�384闋�(y猫)绗�385闋�(y猫)绗�386闋�(y猫)绗�387闋�(y猫)绗�388闋�(y猫)绗�389闋�(y猫)绗�390闋�(y猫)绗�391闋�(y猫)绗�392闋�(y猫)绗�393闋�(y猫)绗�394闋�(y猫)绗�395闋�(y猫)绗�396闋�(y猫)绗�397闋�(y猫)绗�398闋�(y猫)绗�399闋�(y猫)绗�400闋�(y猫)绗�401闋�(y猫)绗�402闋�(y猫)绗�403闋�(y猫)绗�404闋�(y猫)绗�405闋�(y猫)绗�406闋�(y猫)绗�407闋�(y猫)绗�408闋�(y猫)鐣�(d膩ng)鍓嶇409闋�(y猫)绗�410闋�(y猫)绗�411闋�(y猫)绗�412闋�(y猫)绗�413闋�(y猫)绗�414闋�(y猫)绗�415闋�(y猫)绗�416闋�(y猫)绗�417闋�(y猫)绗�418闋�(y猫)绗�419闋�(y猫)绗�420闋�(y猫)绗�421闋�(y猫)绗�422闋�(y猫)绗�423闋�(y猫)绗�424闋�(y猫)绗�425闋�(y猫)绗�426闋�(y猫)绗�427闋�(y猫)绗�428闋�(y猫)绗�429闋�(y猫)绗�430闋�(y猫)绗�431闋�(y猫)绗�432闋�(y猫)绗�433闋�(y猫)绗�434闋�(y猫)绗�435闋�(y猫)绗�436闋�(y猫)绗�437闋�(y猫)绗�438闋�(y猫)绗�439闋�(y猫)绗�440闋�(y猫)绗�441闋�(y猫)绗�442闋�(y猫)绗�443闋�(y猫)绗�444闋�(y猫)绗�445闋�(y猫)绗�446闋�(y猫)绗�447闋�(y猫)绗�448闋�(y猫)绗�449闋�(y猫)绗�450闋�(y猫)绗�451闋�(y猫)绗�452闋�(y猫)绗�453闋�(y猫)绗�454闋�(y猫)绗�455闋�(y猫)绗�456闋�(y猫)绗�457闋�(y猫)绗�458闋�(y猫)绗�459闋�(y猫)绗�460闋�(y猫)绗�461闋�(y猫)绗�462闋�(y猫)绗�463闋�(y猫)绗�464闋�(y猫)绗�465闋�(y猫)绗�466闋�(y猫)绗�467闋�(y猫)绗�468闋�(y猫)绗�469闋�(y猫)绗�470闋�(y猫)绗�471闋�(y猫)绗�472闋�(y猫)绗�473闋�(y猫)绗�474闋�(y猫)绗�475闋�(y猫)绗�476闋�(y猫)绗�477闋�(y猫)绗�478闋�(y猫)绗�479闋�(y猫)绗�480闋�(y猫)绗�481闋�(y猫)绗�482闋�(y猫)绗�483闋�(y猫)绗�484闋�(y猫)绗�485闋�(y猫)绗�486闋�(y猫)绗�487闋�(y猫)绗�488闋�(y猫)绗�489闋�(y猫)绗�490闋�(y猫)绗�491闋�(y猫)绗�492闋�(y猫)绗�493闋�(y猫)绗�494闋�(y猫)绗�495闋�(y猫)绗�496闋�(y猫)绗�497闋�(y猫)绗�498闋�(y猫)绗�499闋�(y猫)绗�500闋�(y猫)绗�501闋�(y猫)绗�502闋�(y猫)绗�503闋�(y猫)绗�504闋�(y猫)绗�505闋�(y猫)绗�506闋�(y猫)绗�507闋�(y猫)绗�508闋�(y猫)绗�509闋�(y猫)绗�510闋�(y猫)绗�511闋�(y猫)绗�512闋�(y猫)绗�513闋�(y猫)绗�514闋�(y猫)绗�515闋�(y猫)绗�516闋�(y猫)绗�517闋�(y猫)绗�518闋�(y猫)绗�519闋�(y猫)绗�520闋�(y猫)绗�521闋�(y猫)绗�522闋�(y猫)绗�523闋�(y猫)绗�524闋�(y猫)绗�525闋�(y猫)绗�526闋�(y猫)绗�527闋�(y猫)绗�528闋�(y猫)绗�529闋�(y猫)绗�530闋�(y猫)绗�531闋�(y猫)绗�532闋�(y猫)绗�533闋�(y猫)绗�534闋�(y猫)绗�535闋�(y猫)绗�536闋�(y猫)绗�537闋�(y猫)绗�538闋�(y猫)绗�539闋�(y猫)绗�540闋�(y猫)绗�541闋�(y猫)绗�542闋�(y猫)绗�543闋�(y猫)绗�544闋�(y猫)绗�545闋�(y猫)绗�546闋�(y猫)绗�547闋�(y猫)绗�548闋�(y猫)绗�549闋�(y猫)绗�550闋�(y猫)绗�551闋�(y猫)绗�552闋�(y猫)绗�553闋�(y猫)绗�554闋�(y猫)绗�555闋�(y猫)绗�556闋�(y猫)绗�557闋�(y猫)绗�558闋�(y猫)绗�559闋�(y猫)绗�560闋�(y猫)绗�561闋�(y猫)绗�562闋�(y猫)绗�563闋�(y猫)绗�564闋�(y猫)绗�565闋�(y猫)绗�566闋�(y猫)绗�567闋�(y猫)绗�568闋�(y猫)绗�569闋�(y猫)绗�570闋�(y猫)绗�571闋�(y猫)绗�572闋�(y猫)绗�573闋�(y猫)绗�574闋�(y猫)绗�575闋�(y猫)绗�576闋�(y猫)绗�577闋�(y猫)绗�578闋�(y猫)绗�579闋�(y猫)绗�580闋�(y猫)绗�581闋�(y猫)绗�582闋�(y猫)绗�583闋�(y猫)绗�584闋�(y猫)绗�585闋�(y猫)绗�586闋�(y猫)绗�587闋�(y猫)绗�588闋�(y猫)绗�589闋�(y猫)绗�590闋�(y猫)绗�591闋�(y猫)绗�592闋�(y猫)绗�593闋�(y猫)绗�594闋�(y猫)绗�595闋�(y猫)绗�596闋�(y猫)绗�597闋�(y猫)绗�598闋�(y猫)绗�599闋�(y猫)绗�600闋�(y猫)绗�601闋�(y猫)绗�602闋�(y猫)绗�603闋�(y猫)绗�604闋�(y猫)绗�605闋�(y猫)绗�606闋�(y猫)绗�607闋�(y猫)绗�608闋�(y猫)绗�609闋�(y猫)绗�610闋�(y猫)绗�611闋�(y猫)绗�612闋�(y猫)绗�613闋�(y猫)绗�614闋�(y猫)绗�615闋�(y猫)绗�616闋�(y猫)绗�617闋�(y猫)绗�618闋�(y猫)绗�619闋�(y猫)绗�620闋�(y猫)绗�621闋�(y猫)绗�622闋�(y猫)绗�623闋�(y猫)绗�624闋�(y猫)绗�625闋�(y猫)绗�626闋�(y猫)绗�627闋�(y猫)绗�628闋�(y猫)绗�629闋�(y猫)绗�630闋�(y猫)绗�631闋�(y猫)绗�632闋�(y猫)绗�633闋�(y猫)绗�634闋�(y猫)绗�635闋�(y猫)绗�636闋�(y猫)绗�637闋�(y猫)绗�638闋�(y猫)绗�639闋�(y猫)绗�640闋�(y猫)绗�641闋�(y猫)绗�642闋�(y猫)绗�643闋�(y猫)绗�644闋�(y猫)绗�645闋�(y猫)绗�646闋�(y猫)绗�647闋�(y猫)绗�648闋�(y猫)绗�649闋�(y猫)绗�650闋�(y猫)绗�651闋�(y猫)绗�652闋�(y猫)绗�653闋�(y猫)绗�654闋�(y猫)绗�655闋�(y猫)绗�656闋�(y猫)绗�657闋�(y猫)绗�658闋�(y猫)绗�659闋�(y猫)绗�660闋�(y猫)绗�661闋�(y猫)绗�662闋�(y猫)绗�663闋�(y猫)绗�664闋�(y猫)绗�665闋�(y猫)绗�666闋�(y猫)绗�667闋�(y猫)绗�668闋�(y猫)绗�669闋�(y猫)绗�670闋�(y猫)绗�671闋�(y猫)绗�672闋�(y猫)绗�673闋�(y猫)绗�674闋�(y猫)绗�675闋�(y猫)绗�676闋�(y猫)绗�677闋�(y猫)绗�678闋�(y猫)绗�679闋�(y猫)绗�680闋�(y猫)绗�681闋�(y猫)绗�682闋�(y猫)绗�683闋�(y猫)绗�684闋�(y猫)绗�685闋�(y猫)绗�686闋�(y猫)绗�687闋�(y猫)绗�688闋�(y猫)绗�689闋�(y猫)绗�690闋�(y猫)绗�691闋�(y猫)绗�692闋�(y猫)绗�693闋�(y猫)绗�694闋�(y猫)绗�695闋�(y猫)绗�696闋�(y猫)绗�697闋�(y猫)绗�698闋�(y猫)绗�699闋�(y猫)绗�700闋�(y猫)绗�701闋�(y猫)绗�702闋�(y猫)绗�703闋�(y猫)绗�704闋�(y猫)绗�705闋�(y猫)绗�706闋�(y猫)绗�707闋�(y猫)绗�708闋�(y猫)绗�709闋�(y猫)绗�710闋�(y猫)绗�711闋�(y猫)绗�712闋�(y猫)绗�713闋�(y猫)绗�714闋�(y猫)绗�715闋�(y猫)绗�716闋�(y猫)绗�717闋�(y猫)绗�718闋�(y猫)绗�719闋�(y猫)绗�720闋�(y猫)绗�721闋�(y猫)绗�722闋�(y猫)绗�723闋�(y猫)绗�724闋�(y猫)绗�725闋�(y猫)绗�726闋�(y猫)绗�727闋�(y猫)绗�728闋�(y猫)绗�729闋�(y猫)绗�730闋�(y猫)绗�731闋�(y猫)绗�732闋�(y猫)绗�733闋�(y猫)绗�734闋�(y猫)绗�735闋�(y猫)绗�736闋�(y猫)绗�737闋�(y猫)绗�738闋�(y猫)绗�739闋�(y猫)绗�740闋�(y猫)绗�741闋�(y猫)绗�742闋�(y猫)绗�743闋�(y猫)绗�744闋�(y猫)绗�745闋�(y猫)绗�746闋�(y猫)绗�747闋�(y猫)绗�748闋�(y猫)绗�749闋�(y猫)绗�750闋�(y猫)绗�751闋�(y猫)绗�752闋�(y猫)绗�753闋�(y猫)绗�754闋�(y猫)绗�755闋�(y猫)绗�756闋�(y猫)绗�757闋�(y猫)绗�758闋�(y猫)绗�759闋�(y猫)绗�760闋�(y猫)绗�761闋�(y猫)绗�762闋�(y猫)绗�763闋�(y猫)绗�764闋�(y猫)绗�765闋�(y猫)绗�766闋�(y猫)
I2C Interface
Freescale Semiconductor
24-13
processor may need to wait until the I2C is busy after writing the calling address to the I2DR before
proceeding with the following instructions.
The following example signals START and transmits the first byte of data (slave address):
1. Check I2SR[IBB]. If it is set, wait until it is clear.
2. After cleared, set to transmit mode by setting I2CR[MTX].
3. Set master mode by setting I2CR[MSTA]. This generates a START condition.
4. Transmit the calling address via the I2DR.
5. Check I2SR[IBB]. If it is clear, wait until it is set and go to step #1.
24.4.3
Post-Transfer Software Response
Sending or receiving a byte sets the I2SR[ICF], which indicates one byte communication is finished.
I2SR[IIF] is also set. An interrupt is generated if the interrupt function is enabled during initialization by
setting I2CR[IIEN]. Software must first clear I2SR[IIF] in the interrupt routine. Reading from I2DR in
receive mode or writing to I2DR in transmit mode can clear I2SR[ICF].
Software can service the I2C I/O in the main program by monitoring the IIF bit if the interrupt function is
disabled. Polling should monitor IIF rather than ICF, because that operation is different when arbitration
is lost.
When an interrupt occurs at the end of the address cycle, the master is always in transmit mode; the address
is sent. If master receive mode is required, I2CR[MTX] should be toggled.
During slave-mode address cycles (I2SR[IAAS] = 1), I2SR[SRW] is read to determine the direction of the
next transfer. MTX is programmed accordingly. For slave-mode data cycles (IAAS = 0), SRW is invalid.
MTX should be read to determine the current transfer direction.
The following is an example of a software response by a master transmitter in the interrupt routine (see
1. Clear the I2CR[IIF] flag.
2. Check if acknowledge has been received, I2SR[RXAK].
3. If no ACK, end transmission. Else, transmit next byte of data via I2DR.
24.4.4
Generation of STOP
A data transfer ends when the master signals a STOP, which can occur after all data is sent, as in the
following example.
1. Check if acknowledge has been received, I2SR[RXAK]. If no ACK, end transmission and go to
step #5.
2. Get value from transmitting counter, TXCNT. If no more data, go to step #5.
3. Transmit next byte of data via I2DR.
4. Decrement TXCNT and go to step #1
5. Generate a stop condition by clearing I2CR[MSTA].
MCF5282 and MCF5216 ColdFire Microcontroller User鈥檚 Manual, Rev. 3
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
MC68331CAG25 IC MCU 32BIT 25MHZ 144-LQFP
SPC5516GBMLQ66 MCU POWERPC AN15 FIXED 144-LQFP
MCIMX355AVM5B IC MPU I.MX35 400MAPBGA
MC912D60AVFUE8 MCU 16BIT 80-QFP
MCIMX27MJP4A MPU IMX27 473-MAPBGA
鐩搁棞(gu膩n)浠g悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉)
鍙冩暩(sh霉)鎻忚堪
MCF5281CVM66J 鍔熻兘鎻忚堪:32浣嶅井鎺у埗鍣� - MCU V2CORE 256K FLASH RoHS:鍚� 鍒堕€犲晢:Texas Instruments 鏍稿績:C28x 铏曠悊鍣ㄧ郴鍒�:TMS320F28x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:32 bit 鏈€澶ф檪(sh铆)閻橀牷鐜�:90 MHz 绋嬪簭瀛樺劜(ch菙)鍣ㄥぇ灏�:64 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:26 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:2.97 V to 3.63 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:LQFP-80 瀹夎棰�(f膿ng)鏍�:SMD/SMT
MCF5281CVM80 鍔熻兘鎻忚堪:32浣嶅井鎺у埗鍣� - MCU MCF5281 V2CORE 256KFLASH RoHS:鍚� 鍒堕€犲晢:Texas Instruments 鏍稿績:C28x 铏曠悊鍣ㄧ郴鍒�:TMS320F28x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:32 bit 鏈€澶ф檪(sh铆)閻橀牷鐜�:90 MHz 绋嬪簭瀛樺劜(ch菙)鍣ㄥぇ灏�:64 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:26 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:2.97 V to 3.63 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:LQFP-80 瀹夎棰�(f膿ng)鏍�:SMD/SMT
MCF5282 鍒堕€犲晢:FREESCALE 鍒堕€犲晢鍏ㄧū:Freescale Semiconductor, Inc 鍔熻兘鎻忚堪:CodeWarrior Development Studio for ColdFire銏� Architectures
MCF5282CVF66 鍔熻兘鎻忚堪:32浣嶅井鎺у埗鍣� - MCU MCF5282 V2CORE 512KFLASH RoHS:鍚� 鍒堕€犲晢:Texas Instruments 鏍稿績:C28x 铏曠悊鍣ㄧ郴鍒�:TMS320F28x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:32 bit 鏈€澶ф檪(sh铆)閻橀牷鐜�:90 MHz 绋嬪簭瀛樺劜(ch菙)鍣ㄥぇ灏�:64 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:26 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:2.97 V to 3.63 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:LQFP-80 瀹夎棰�(f膿ng)鏍�:SMD/SMT
MCF5282CVF66J 鍔熻兘鎻忚堪:32浣嶅井鎺у埗鍣� - MCU V2CORE 512K FLASH RoHS:鍚� 鍒堕€犲晢:Texas Instruments 鏍稿績:C28x 铏曠悊鍣ㄧ郴鍒�:TMS320F28x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:32 bit 鏈€澶ф檪(sh铆)閻橀牷鐜�:90 MHz 绋嬪簭瀛樺劜(ch菙)鍣ㄥぇ灏�:64 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:26 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:2.97 V to 3.63 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:LQFP-80 瀹夎棰�(f膿ng)鏍�:SMD/SMT