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HT67F488 Datasheet(PDF) 141 Page - Holtek Semiconductor Inc |
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HT67F488 Datasheet(HTML) 141 Page - Holtek Semiconductor Inc |
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141 / 171 page  Rev. 1.60 141 �ove��e� ��� �016 HT67F488/HT67F489 TinyPowerTM A/D Flash MCU with LCD & EEPROM TBC Register Bit 7 6 5 4 3 2 1 0 �a�e TBO� TBCK TB11 TB10 — TB0� TB01 TB00 R/W R/W R/W R/W R/W — R/W R/W R/W POR 0 0 1 1 — 1 1 1 Bit7 TBON:TB0andTB1Control 0:Disable 1:Enable Bit6 TBCK:SelectfTBClock 0:fTBC 1:fSYS/4 Bit5~4 TB11, TB10:SelectTimeBase1Time-outPeriod 00:4096/fTB 01:8192/fTB 10:16384/fTB 11:32768/fTB Bit3 Unimplemented,readas“0” Bit2~0 TB02~TB00:SelectTimeBase0Time-outPeriod 000:256/fTB 001:512/fTB 010:1024/fTB 011:2048/fTB 100:4096/fTB 101:8192/fTB 110:16384/fTB 111:32768/fTB M U X M U X LX T LI RC f SY S /4 ¸ 2 ~ 2 81 5 ¸ 2 ~ 2 12 15 TB 11 ~T B1 0 Ti me B as e 0 In te rr upt Ti me B as e 1 In te rr upt F SU BC F SU B6 ~F SU B0 b it s TB CK B it TB 02 ~T B0 0 f TB f TB C Time Base Interrupt EEPROM Interrupt TheEEPROMinterruptiscontainedwithintheMulti-functionInterrupt.AnEEPROMInterrupt requestwilltakeplacewhentheEEPROMInterruptrequestflag,DEF,isset,whichoccurs whenanEEPROMWritecycleends.Toallowtheprogramtobranchtoitsrespectiveinterrupt vectoraddress,theglobalinterruptenablebit,EMI,andEEPROMInterruptenablebit,DEE,and associatedMulti-functioninterruptenablebit,mustfirstbeset.Whentheinterruptisenabled,the stackisnotfullandanEEPROMWritecycleends,asubroutinecalltotherespectiveEEPROM Interruptvectorwilltakeplace.WhentheEEPROMInterruptisserviced,theEMIbitwillbe automaticallyclearedtodisableotherinterrupts,howeveronlytheMulti-functioninterruptrequest flagwillbealsoautomaticallycleared.AstheDEFflagwillnotbeautomaticallycleared,ithastobe clearedbytheapplicationprogram. |
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