鎽樿锛�浠嬬垂涓€绋敤CPLD瀵�(sh铆)鐝�(xi脿n)鍠墖姗�(j墨)灏岶lash Rom鐨勮畝瀵帶鍒舵柟娉�銆傜敤CPLD瀵�(sh铆)鐝�(xi脿n)鍠墖姗�(j墨)灏岶lash Rom鐨勮畝瀵帶鍒�锛屼笉鍍呭彲浠ョ獊鐮村柈鐗囨(j墨)I/O鏈夐檺鐨勫眬闄�锛屼篃鍏呭垎楂旂従(xi脿n)浜咰PLD閭忚集鎺у埗鍣ㄤ欢涓嶅儏鍙互鎿�(ku貌)灞旾/O鍙ｏ紝鑰屼笖鍏锋湁閭忚集鍔熻兘鐨勭壒榛�(di菐n)銆� Abstract:Introducing a way of CPLD realizes that Microcontroller controls the read and write of Flash Rom. CPLD realizes that Microcontroller controls the read and write of Flash Rom, which not only is a breakthrough I / O limitations of Microcontroller, but also fully embodies the CPLD 鈥斺€擫ogic Control Device not only can expand I / O port, but also has the characteristics of logic functions 寮曡█锛� 銆€銆€鐒¤珫鍝ó椤炲瀷鐨勫柈鐗囨(j墨)锛孖/O鍙ｆ槸鏈夐檺鐨�銆傚湪鏌愪簺鎳�(y墨ng)鐢ㄥ牬鍚堬紝鍠墖姗�(j墨)鐨処/O鍙ｆ槸涓嶅鐢ㄧ殑锛岄€欐檪(sh铆)闇€瑕佹摯(ku貌)灞曞柈鐗囨(j墨)鐨処/O鍙ｏ紝鏈ō(sh猫)瑷�(j矛)閬哥敤CPLD鎿�(ku貌)灞曞柈鐗囨(j墨)鐨処/O鍙�锛屽(sh铆)鐝�(xi脿n)鍠墖姗�(j墨)灏岶lash Rom鐨勮畝瀵帶鍒�銆備箣鎵€浠ラ伕鐢–PLD, 鍥�?y脿n)闀働LD鍏锋湁楂橀泦鎴愬害銆侀珮鍙潬鎬т互鍙婄‖浠堕倧杓祼(ji茅)妲�(g貌u)鐨勫彲鎻忚堪鎬х瓑鐗归粸(di菐n)銆傞噰鐢–PLD浣滅偤鎺ュ彛鎿�(ku貌)灞曡姱鐗�, 澶уぇ娓涘皯浜嗘墍鐢ㄨ姱鐗囩殑绋鍜屾暩(sh霉)閲�,绺皬浜嗛珨绌�, 闄嶄綆浜嗗姛鑰�, 鎻愰珮浜嗙郴绲�(t菕ng)鐨勫彲闈犳€у拰鏁撮珨鎬�銆� 1 ispMACH 4032ZCPLD 銆€銆€寰�(f霉)闆滃彲绶ㄧ▼閭忚集鍣ㄤ欢CPLD 锛圕omplex Program2mable Logic Device锛夋槸涓€绋崐瀹氬埗鐨勫皥鐢ㄩ泦鎴愰浕璺疉SIC 锛圓pplication Specific Integrated Circuit锛� 銆傚叾鑺墖涓婃寜涓€瀹氭帓鍒楁柟寮忛泦鎴愪簡澶ч噺鐨勯杸鍜岃Ц鐧�(f膩)鍣ㄧ瓑鍩烘湰閭忚集鍏冧欢銆傞€氶亷杌熶欢绶ㄧ▼鍙互瀵�(sh铆)鐝�(xi脿n)閫欎簺鍏冧欢鐨勯€ｆ帴,寰炶€屼娇涔嬪畬鎴愭煇鍊�(g猫)閭忚集闆昏矾鎴栫郴绲�(t菕ng)鐨勫姛鑳�,鎴愮偤涓€鍊�(g猫)鍙湪瀵�(sh铆)闅涢浕瀛愮郴绲�(t菕ng)涓娇鐢ㄧ殑ASIC銆� 銆€銆€鏈ō(sh猫)瑷�(j矛)閲囩敤鐨勬槸ispMACH 4000Z CPLD銆俰spMACH 4000Z CPLD绯诲垪鍣ㄤ欢鐨勪富瑕佺壒榛�(di菐n)鏄�锛岄潨鎱�(t脿i)鍔熻€楀儏鐐虹洰鍓嶄綆闆诲CPLD鐨�20%锛岃€屼笖閬�(y霉n)琛岄€熷害妤靛揩銆傝┎绯诲垪绗竴绋敘(ch菐n)鍝乮spMACH 4032Z锛岀鑵宠嚦绠¤叧鐨勯伈寤剁偤3.5nS锛屾檪(sh铆)閻樿嚦杓稿嚭鐨勯伈寤剁偤3.0nS锛屽缓绔嬫檪(sh铆)闁撶偤2.2nS锛屽伐浣滈牷鐜囬珮閬�(d谩)265MHz銆俰spMACH 4032Z鐩墠宸茬稉(j墨ng)涓婂競锛屾湁鍟嗙敤銆佸伐妤�(y猫)鐢ㄥ拰杌婄敤涓夌ó婧害閬告搰锛岄噰鐢�48鑵砊QFP鎴栫悆闁撹窛鐐�0.8姣背鐨�49鐞冭姱鐗囨煹鏍奸櫍鍒楀皝瑁�銆� 2 绯荤当(t菕ng)鐨勭附楂旇ō(sh猫)瑷�(j矛) 銆€銆€2.1 纭欢瑷�(sh猫)瑷�(j矛) 銆€銆€鐪炬墍鍛ㄤ箣锛岀劇璜栧摢绋瀷铏熺殑鍠墖姗�(j墨)锛孖/O鍙ｆ槸鏈夐檺鐨�锛屽鏋滀笉鍘绘摯(ku貌)灞旾/O鍙�锛屽柈鐗囨(j墨)鐨勬噳(y墨ng)鐢ㄥ皣鍙楀埌灞€闄�銆傝€孋PLD鍏锋湁璞愬瘜鐨処/O鍙ｇ殑閭忚集鍣ㄤ欢锛屽柈鐗囨(j墨)鐢–OLD鎿�(ku貌)灞曟帴鍙ｅ彲浠ュぇ澶ф摯(ku貌)灞曞柈鐗囨(j墨)鐨勫(sh铆)鐝�(xi脿n)鍔熻兘锛屽湪鍠墖姗�(j墨)灏岶lash Rom鐨勮畝瀵帶鍒朵腑锛岄噰鐢–PLD瀵�(sh铆)鐝�(xi脿n)鍠墖姗�(j墨)灏岶lash Rom璁€瀵帶鍒�锛屼笉鍍呭彲浠ュ(sh铆)鐝�(xi脿n)I/O鍙ｆ湁闄愮殑灞€闄�锛屼篃鍏呭垎楂旂従(xi脿n)浜咰PLD閭忚集鎺у埗鍣ㄤ欢涓嶅儏鑳芥摯(ku貌)灞旾/O鍙�锛岃€屼笖鍏锋湁閭忚集鍔熻兘鐨勭壒榛�(di菐n)锛岀郴绲�(t菕ng)鐨勮ō(sh猫)瑷�(j矛)鎬濇兂闂¤堪濡備笅锛� 銆€銆€绯荤当(t菕ng)纭欢閫ｆ帴妗嗗湒濡傚湒 [align=center] 鍦�1 绯荤当(t菕ng)绺介珨瑷�(sh猫)瑷�(j矛)妗嗗湒[/align] 銆€銆€涓婅堪妗嗗湒瑷�(sh猫)瑷�(j矛)瑾槑濡備笅锛氬埄鐢ㄥ柈鐗囨(j墨)ADUC831鐨凱2.5銆丳2.6鍒嗗垾鑸嘑lash Rom鐨勫鎺у埗绔浉閫ｃ€侾0鍙ｄ綔鐐篊PLD鑸囧柈鐗囨(j墨)I/O鐩搁€�锛孭2.0浣滅偤CPLD鐨勬帶鍒堕伕鎿囩锛孭2.7浣滅偤CPLD鍚屾鎺у埗绔紝CPLD鐨勮几鍑篈0-A7浣滅偤Flash Rom鐨勪綆8浣嶅湴鍧€锛孉8-A15鐐篎lash Rom鐨勯珮8浣嶅湴鍧€锛孌0-D7浣滅偤鏁�(sh霉)鎿�(j霉)鐨勮几鍏ヨ几鍑哄彛銆� 銆€銆€2.2 CPLD杌熶欢瑷�(sh猫)瑷�(j矛) 銆€銆€ALTERA 鍏徃鐨凜PLD 闁嬬櫦(f膩)杌熶欢鏈塎AX +PlusII鍜孮uartusII,閫欓噷浣跨敤MAX+PlussII瀹屾垚绯荤当(t菕ng)鐨勮粺浠惰ō(sh猫)瑷�(j矛), MAX+PlussII鏀寔鍘熺悊鍦栬几鍏�銆乂HDL 瑾炶█杓稿叆銆佺媭鎱�(t脿i)鍦栬几鍏ュ拰娣峰悎杓稿叆绛夎几鍏ユ柟娉�銆俈HDL纭欢鎻忚堪瑾炶█,鑸囧叿楂旂殑宸ヨ棟鎶€琛�(sh霉)鍜屽櫒浠剁劇闂�(gu膩n),鏄撲簬鍏变韩鍜屽京(f霉)鐢�,鍏锋湁澶氬堡娆℃弿杩扮郴绲�(t菕ng)纭欢鍔熻兘鐨勮兘鍔�銆傚柈鐗囨(j墨)閫氶亷CPLD瀵�(sh铆)鐝�(xi脿n)灏岶lash Rom鐨勬帶鍒�锛屽湪瑷�(sh猫)瑷�(j矛)涓�, CPLD闇€瑕佸(sh铆)鐝�(xi脿n)鐨勫姛鑳芥槸CPLD灏岶lash Rom璁€鍜屽锛屽ぇ澶х府娓涗簡鍠墖姗�(j墨)鐨勫伐浣�銆傜敤VHDL灏嶈┎鍔熻兘妯″绶ㄧ▼绶ㄨ銆傜▼搴忕墖娈靛涓嬶細 銆€銆€Architecture flash rom is 銆€銆€Signal oel, opl: std_logic 銆€銆€Signal oeh, oph: std_logic 銆€銆€Signal rdw, rdr: std_logic 銆€銆€Begin 銆€銆€Status_select: block 銆€銆€Signal tmp锛歴td_ logic_vector 锛�5 down to锛� 銆€銆€Signal reg锛歴td_logic_vector 锛�44 down 0锛� 銆€銆€Tmp<=鈥�01011011000zz01鈥漺hen reg=鈥�00000鈥漞lse 銆€銆€鈥�00011011000zz01鈥漺hen reg=鈥�00000鈥漞lse 銆€銆€鈥�01010111000zz01鈥漺hen reg=鈥�00000鈥漞lse 銆€銆€鈥�11110001000zz01鈥漺hen reg=鈥�00000鈥漞lse 銆€銆€鈥�111100110000zz01鈥� 銆€銆€Process 锛坈lk锛� 銆€銆€Begin 銆€銆€If clk鈥檈vent and clk=鈥�1鈥檛hen 銆€銆€Reg<=status; 銆€銆€End if; 銆€銆€End process; 銆€銆€2.3鍠墖姗�(j墨)绋嬪簭瑷�(sh猫)瑷�(j矛) 銆€銆€鍠墖姗�(j墨)涓昏瀹屾垚绯荤当(t菕ng)鐨勬帶鍒跺姛鑳�,鍦ㄥ(sh铆)鐝�(xi脿n)杓稿嚭鎺у埗鎺ュ彛鏅�(sh铆)闇€瑕佽垏CPLD閰嶅悎,鎻愪緵CPLD 闇€瑕佺殑鏁�(sh霉)鎿�(j霉)鍜屽湴鍧€鍙婃帶鍒剁窔銆傜暥(d膩ng)闇€瑕佹煇涓€绲勮几鍑哄伐浣滄檪(sh铆),鍏堝皣瑭茬祫鍦板潃瀛樺叆DPTR 涓�, 鍐嶄娇鐢ㄦ寚浠�:MOVX A, @DPTR,鍚屾檪(sh铆)鈥淲R鈥濊鎷変綆,鑰孋PLD 鐨勯€氶亾閬告搰绔彛鑸囧柈鐗囨(j墨)鐨凱0銆丳2. 0銆丳2. 7 鐩搁€ｆ帴銆侰PLD閫氶亷閫欑祫淇¤櫉鍒ゆ柗閬告搰骞朵笖浣胯兘Flash Rom,瀹屾垚Flash Rom璁€瀵搷浣�銆� 3 绲�(ji茅)鏉熻獮 銆€銆€浣跨敤鍠墖姗�(j墨)鍜孋PLD绲�(ji茅)鍚堝彲浠ユ湁鏁堝湴瀵�(sh铆)鐝�(xi脿n)閬庡幓闇€瑕佸埄鐢ㄥ柈鐗囨(j墨)鍜屽ぇ閲忓鍦嶆帴鍙ｈ姱鐗囨墠鑳藉畬鎴愮殑鍔熻兘銆傞噰鐢–PLD浣滅偤鎺ュ彛鎿�(ku貌)灞曡姱鐗�,澶уぇ娓涘皯浜嗘墍鐢ㄨ姱鐗囩殑绋鍜屾暩(sh霉)閲�,绺皬浜嗛珨绌�,闄嶄綆浜嗗姛鑰�,鎻愰珮浜嗙郴绲�(t菕ng)鐨勫彲闈犳€у拰鏁撮珨鎬с€傜敤CPLD瀵�(sh铆)鐝�(xi脿n)鍠墖姗�(j墨)灏岶lash Rom鐨勮畝瀵帶鍒朵笉鍍呭彲浠ュ(sh铆)鐝�(xi脿n)I/O鍙ｆ湁闄愮殑灞€闄�锛屼篃鍏呭垎楂旂従(xi脿n)浜咰PLD閭忚集鎺у埗鍣ㄤ欢涓嶅儏鑳芥摯(ku貌)灞旾/O鍙ｏ紝鑰屼笖鍏锋湁閭忚集鍔熻兘鐨勭壒榛�(di菐n).杩戝勾渚�,闅ㄨ憲閲囩敤鍏堥€�(j矛n)鐨勯泦鎴愬伐钘濆拰澶ф壒閲忕敓鐢�(ch菐n), CPLD 鍣ㄤ欢鎴愭湰涓嶆柗涓嬮檷,闆嗘垚瀵嗗害銆侀€熷害鍜屾€ц兘閮藉ぇ骞呭害鎻愰珮銆傞€欐ǎ,涓€鍊�(g猫)鑺墖灏卞彲浠ュ(sh铆)鐝�(xi脿n)涓€鍊�(g猫)寰�(f霉)闆滅殑鏁�(sh霉)瀛楅浕璺郴绲�(t菕ng);鍐嶅姞涓婁娇鐢ㄦ柟渚跨殑闁嬬櫦(f膩)宸ュ叿,绲﹁ō(sh猫)瑷�(j矛)淇敼甯朵締寰堝ぇ鏂逛究,鍙互澶уぇ绺煭绯荤当(t菕ng)鐨勮ō(sh猫)瑷�(j矛)鍛ㄦ湡,寰炶€屾サ澶ф彁楂樼敘(ch菐n)鍝佺殑甯傚牬绔剁埈鍔�銆� 鍙冭€冩枃鐛�(xi脿n) 銆€銆€[1]銆€寮垫瘏鍓�,褰枩婧�,鏇叉槬娉�. 鍠墖姗�(j墨)鎳�(y墨ng)鐢ㄦ妧琛�(sh霉). 鍝堢埦婵�:鍝堢埦婵卞伐妤�(y猫)澶у(xu茅)鍑虹増绀俱€�1997 銆€銆€[2] 渚集浜�,椤ф柊. VHDL纭欢鎻忚堪瑾炶█鑸囨暩(sh霉)瀛楅倧杓浕璺ō(sh猫)瑷�(j矛)銆傝タ瀹�:瑗垮畨闆诲瓙绉戞妧澶у(xu茅)鍑虹増绀�, 1999銆� 銆€銆€[3] 闄宠€€. VHDL瑾炶█瑷�(sh猫)瑷�(j矛)鎶€琛�(sh霉).鍖椾含:闆诲瓙宸ユキ(y猫)鍑虹増绀�.2004