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HT66F20 Datasheet(PDF) 92 Page - Holtek Semiconductor Inc |
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HT66F20 Datasheet(HTML) 92 Page - Holtek Semiconductor Inc |
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92 / 298 page  Rev. 1.90 9� �e���a�� 18� �01� Rev. 1.90 9� �e���a�� 18� �01� HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM Pin-remapping Functions Theflexibilityofthemicrocontrollerrangeisgreatlyenhancedbytheuseofpinsthathavemore thanonefunction.Limitednumbersofpinscanforceseriousdesignconstraintsondesignersbut bysupplyingpinswithmulti-functions,manyofthesedifficultiescanbeovercome.Thewayin whichthepinfunctionofeachpinisselectedisdifferentforeachfunctionandapriorityorderis establishedwheremorethanonepinfunctionisselectedsimultaneously.Additionallytherearea seriesofPRM0,PRM1andPRM2registerstoestablishcertainpinfunctions. Pin-remapping Registers Thelimitednumberofsuppliedpinsinapackagecanimposerestrictionsontheamountoffunctions acertaindevicecancontain.Howeverbyallowingthesamepinstoshareseveraldifferentfunctions andprovidingameansoffunctionselection,awiderangeofdifferentfunctionscanbeincorporated intoevenrelativelysmallpackagesizes.SomedevicesincludePRM0,PRM1orPRM2registers whichcanselectthefunctionsofcertainpins. Pin-remapping Register List • HT66F30 Register Name Bit 7 6 5 4 3 2 1 0 PRM0 — — — — — PCPRM SIMPS0 PCKPS • HT66F40 Register Name Bit 7 6 5 4 3 2 1 0 PRM0 — C1XPS0 — C0XPS0 PDPRM SIMPS1 SIMPS0 PCKPS PRM1 TCK�PS TCK1PS TCK0PS — INT1PS1 INT1PS0 INT0PS1 INT0PS0 PRM� — — TP�1PS TP�0PS TP1B�PS TP1APS TP01PS TP00PS • HT66F50 Register Name Bit 7 6 5 4 3 2 1 0 PRM0 — C1XPS0 — C0XPS0 PDPRM SIMPS1 SIMPS0 PCKPS PRM1 TCK�PS TCK1PS TCK0PS — INT1PS1 INT1PS0 INT0PS1 INT0PS0 PRM� TP�1PS TP�0PS TP�1PS TP�0PS TP1B�PS TP1APS TP01PS TP00PS • HT66F60 Register Name Bit 7 6 5 4 3 2 1 0 PRM0 C1XPS1 C1XPS0 C0XPS1 C0XPS0 PDPRM SIMPS1 SIMPS0 PCKPS PRM1 TCK�PS TCK1PS TCK0PS INT�PS1 INT1PS1 INT1PS0 INT0PS1 INT0PS0 PRM� TP�1PS TP�0PS TP�1PS TP�0PS TP1B�PS TP1APS TP01PS TP00PS |
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