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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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HT66F019 bảng dữ liệu(PDF) 57 Page - Holtek Semiconductor Inc |
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HT66F019 bảng dữ liệu(HTML) 57 Page - Holtek Semiconductor Inc |
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57 / 175 page  Rev. 1.00 56 De�e��e� 01� �01� Rev. 1.00 5� De�e��e� 01� �01� HT66F019 A/D Flash MCU with EEPROM HT66F019 A/D Flash MCU with EEPROM Input/Output Ports HoltekmicrocontrollersofferconsiderableflexibilityontheirI/Oports.Withtheinputoroutput designationofeverypinfullyunderuserprogramcontrol,pull-highselectionsforallportsand wake-upselectionsoncertainpins,theuserisprovidedwithanI/Ostructuretomeettheneedsofa widerangeofapplicationpossibilities. Thedeviceprovidesbidirectionalinput/outputlineslabeledwithportnamesPA~PC.TheseI/O portsaremappedtotheRAMDataMemorywithspecificaddressesasshownintheSpecialPurpose DataMemorytable.AlloftheseI/Oportscanbeusedforinputandoutputoperations.Forinput operation,theseportsarenon-latching,whichmeanstheinputsmustbereadyattheT2risingedge ofinstruction"MOVA,[m]",wheremdenotestheportaddress.Foroutputoperation,allthedatais latchedandremainsunchangeduntiltheoutputlatchisrewritten. ThedevicesupportssourcecurrentdrivingcapabilityforeachI/Oport.Usersshouldrefertothe Input/OutputCharacteristicsforI/Oportsourcecurrentdetails. Register Name Bit 7 6 5 4 3 2 1 0 PA PA� PA6 PA5 PA4 PA3 PA� PA1 PA0 PAC PAC� PAC6 PAC5 PAC4 PAC3 PAC� PAC1 PAC0 PAPU PAPU� PAPU6 PAPU5 PAPU4 PAPU3 PAPU� PAPU1 PAPU0 PAWU PAWU� PAWU6 PAWU5 PAWU4 PAWU3 PAWU� PAWU1 PAWU0 PB — PB6 PB5 PB4 PB3 PB� PB1 PB0 PBC — PBC6 PBC5 PBC4 PBC3 PBC� PBC1 PBC0 PBPU — PBPU6 PBPU5 PBPU4 PBPU3 PBPU� PBPU1 PBPU0 PC — — — — — PC� PC1 PC0 PCC — — — — — PCC� PCC1 PCC0 PCPU — — — — — PCPU� PCPU1 PCPU0 IFS — — — — — RXCTL TXPS RXPS "—": Uni�ple�ented� �ead as "0" I/O Logic Function Register List Pull-high Resistors Manyproductapplicationsrequirepull-highresistorsfortheirswitchinputsusuallyrequiringthe useofanexternalresistor.Toeliminatetheneedfortheseexternalresistors,allI/Opins,when configuredasaninputhavethecapabilityofbeingconnectedtoaninternalpull-highresistor.These pull-highresistorsareselectedusingregistersPAPU~PCPU,andareimplementedusingweak PMOStransistors. • PxPU Register Bit 7 6 5 4 3 2 1 0 Na�e PxPU� PxPU6 PxPU5 PxPU4 PxPU3 PxPU� PxPU1 PxPU0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 0 0 0 0 0 0 0 0 PxPUn:I/OPortxPinpull-highfunctioncontrol 0:Disable 1:Enable ThePxPUnbitisusedtocontrolthepinpull-highfunction.Herethe"x"canbeA,BorC.However, theactualavailablebitsforeachI/OPortmaybedifferent. |
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