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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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HT45F5Q bảng dữ liệu(PDF) 52 Page - Holtek Semiconductor Inc |
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HT45F5Q bảng dữ liệu(HTML) 52 Page - Holtek Semiconductor Inc |
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52 / 114 page  Rev. 1.10 5� De�e��e� 1�� �01� Rev. 1.10 5� De�e��e� 1�� �01� HT45F5Q Charger Flash MCU HT45F5Q Charger Flash MCU Input/Output Ports HoltekmicrocontrollersofferconsiderableflexibilityontheirI/Oports.Withtheinputoroutput designationofeverypinfullyunderuserprogramcontrol,pull-highselectionsforallportsand wake-upselectionsoncertainpins,theuserisprovidedwithanI/Ostructuretomeettheneedsofa widerangeofapplicationpossibilities. Thedeviceprovidebidirectionalinput/outputlineslabeledwithportnamePA.TheseI/Oports aremappedtotheRAMDataMemorywithspecificaddressesasshownintheSpecialPurpose DataMemorytable.AlloftheseI/Oportscanbeusedforinputandoutputoperations.Forinput operation,theseportsarenon-latching,whichmeanstheinputsmustbereadyattheT2risingedge ofinstruction“MOVA,[m]”,wheremdenotestheportaddress.Foroutputoperation,allthedatais latchedandremainsunchangeduntiltheoutputlatchisrewritten. I/O Control Register List Register Name Bit 7 6 5 4 3 2 1 0 PA PA7 PA� PA5 PA4 PA� PA� PA1 PA0 PAC PAC7 PAC� PAC5 PAC4 PAC� PAC� PAC1 PAC0 PAPU PAPU7 PAPU� PAPU5 PAPU4 PAPU� PAPU� PAPU1 PAPU0 PAWU PAWU7 PAWU� PAWU5 PAWU4 PAWU� PAWU� PAWU1 PAWU0 PASR PAS7 PAS� PAS5 PAS4 PAS� PAS� PAS1 PAS0 IFS0 — — — — — — INTPS1 INTPS0 Pull-high Resistors Manyproductapplicationsrequirepull-highresistorsfortheirswitchinputsusuallyrequiringthe useofanexternalresistor.Toeliminatetheneedfortheseexternalresistors,allI/Opins,when configuredasaninputhavethecapabilityofbeingconnectedtoaninternalpull-highresistor. Thesepull-highresistorsareselectedusingregisterPAPU,andareimplementedusingweakPMOS transistors. NotethatonlywhentheI/OportsareconfiguredasdigitalintputorNMOSoutput,theinternal pull-highfunctionscanbeenabledusingthePAPUregister.Inotherconditions,internalpull-high functionsaredisabled. PAPU Register Bit 7 6 5 4 3 2 1 0 Na�e PAPU7 PAPU� PAPU5 PAPU4 PAPU� PAPU� PAPU1 PAPU0 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 Bit7~0 I/OPortAbit7~bit0Pull-HighControl 0:Disable 1:Enable |
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