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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT82B42R датащи(PDF) 49 Page - Holtek Semiconductor Inc |
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HT82B42R датащи(HTML) 49 Page - Holtek Semiconductor Inc |
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49 / 86 page  Rev. 1.00 48 October 27, 2011 Rev. 1.00 49 October 27, 2011 HT82B42R/HT82B42RE I/O MCU with USB Interface USC Register Bit 7 6 5 4 3 2 1 0 Name PS2_CKO PS2_DAO PS2_CKI PS2_DAI RESUME_O URST_FLAG RMOT_WK SUSPEND R/W W W R R R R/W W R POR 1 1 0 0 0 0 0 0 Bit7 PS2_CKO:OutputfordrivingUDP/CLKpin,whenthedeviceworksunder3D PS2mousefunction.Thedefaultvalueis“1”. Bit6 PS2_DAO:OutputfordrivingUDN/DATApin,whenthedeviceworksunder3D PS2mousefunction.Thedefaultvalueis“1”. Bit5 PS2_CKI:UDP/CLKinputdetectbit 0:input“0” 1:input“1” Bit4 PS2_DAI:UDN/DATAinputdetectbit 0:input“0” 1:input“1” Bit3 RESUME_O:USBresumeindicationbit 0:SUSPENDbitgoesto“0” 1:leavethesuspendmode WhentheUSBleavesthesuspendmode,thisbitissetto“1”(setbySIE).Whenthe RESUMEissetbySIE,aninterruptwillbegeneratedtowake-uptheMCU.Inorder todetectthesuspendstate,theMCUshouldsetUSBCKENandclearSUSP2(inthe SCCregister)toenabletheSIEdetectfunction.RESUMEwillbeclearedwhenthe SUSPENDgoesto“0”.WhentheMCUisdetectingtheSUSPEND,theconditionof RESUME(causestheMCUtowake-up)shouldbenotedandtakenintoconsideration. Bit2 URST_FLAG:USBresetindicationbit 0:noUSBreset 1:USBresetoccurred Thisbitisset/clearedbytheUSBSIE.ThisbitisusedtodetectaUSBreseteventon theUSBbus.Whenthisbitissetto“1”,thisindicatesthataUSBresethasoccurred andthataUSBinterruptwillbeinitialized. Bit1 RMOT_WK:USBremotewake-upcommand 0:noremotewake-up 1:remotewake-up ItissetbyMCUtoleavetheUSBhostleavingthesuspendmode.Indicatethatthe USBhostleavesthesuspendmode. Bit0 SUSPEND:USBsuspendindication 0:notinthesuspendmode 1:enterthesuspendmode Whenthisbitissetto1(setbySIE),itindicatesthattheUSBbushasenteredthe suspendmode.TheUSBinterruptisalsotriggeredwhenthisbitchangesfromlowto high. |
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