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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT68F005 датащи(PDF) 51 Page - Holtek Semiconductor Inc |
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HT68F005 датащи(HTML) 51 Page - Holtek Semiconductor Inc |
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51 / 93 page  Rev. 1.00 50 ��to�e� ��� �01� Rev. 1.00 51 ��to�e� ��� �01� HT68F005/HT68F006 Enhanced I/O Flash Type MCU HT68F005/HT68F006 Enhanced I/O Flash Type MCU Pin-remapping Functions Theflexibilityofthemicrocontrollerrangeisgreatlyenhancedbytheuseofpinsthathavemore thanonefunction.Limitednumbersofpinscanforceseriousdesignconstraintsondesignersbut bysupplyingpinswithmulti-functions,manyofthesedifficultiescanbeovercome.Thewayin whichthepinfunctionofeachpinisselectedisdifferentforeachfunctionandapriorityorderis establishedwheremorethanonepinfunctionisselectedsimultaneously.Additionallythereisa PRMregistertoestablishcertainpinfunctions.Generallyspeaking,theanalogfunctionhashigher prioritythanthedigitalfunction. Pin-remapping Registers Thelimitednumberofsuppliedpinsinapackagecanimposerestrictionsontheamountoffunctions acertaindevicecancontain.Howeverbyallowingthesamepinstoshareseveraldifferentfunctions andprovidingameansoffunctionselection,awiderangeofdifferentfunctionscanbeincorporated intoevenrelativelysmallpackagesizes. PRM Register Register Name Bit 7 6 5 4 3 2 1 0 Name PRMS7 PRMS6 PRMS5 PRMS4 PRMS3 PRMS� PRMS1 PRMS0 R/W R/W R/W R/W R/W R/W R/W R/W R/W P�R 0 0 0 0 0 0 0 0 Bit7~6 PRMS7~PRMS6:TCK1pin-remappingfunctionselectionbit 00:TCK1onPA2 01:TCK1onPA7 10:Undefined 11:TCK1onPA4 Bit5 PRMS5:TCK0pin-remappingfunctionselectionbit 0:TCK0onPA7 1:TCK0onPA6 Bit4 PRMS4:TP1_0pin-remappingfunctionselectionbit 0:TP1_0onPA6 1:TP1_0onPA7 Bit3 PRMS3:TP0_1pin-remappingfunctionselectionbit 0:TP0_1onPA5 1:TP0_1onPA1 Bit2 PRMS2:TP0_0pin-remappingfunctionselectionbit 0:TP0_0onPA2 1:TP0_0onPA0 Bit1~0 PRMS1~PRMS0:INTpin-remappingfunctionselectionbit 00:INTonPA5 01:INTonPA2 10:INTonPA3 11:INTonPA7 |
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