PS2 to USB 鼠标

ThisTechnicalBriefdetailsthetranslationofaPS/2

®

mousetoaUSBmouseusingthePIC16C745/765.The

PIC16C745/765isMicrochip’slow-speedUSBmicro-

controller.AlloftheUSBdescriptorsforthemouse

translatorarelistedinthetablesinAppendixA:

“DeviceDescriptors”.Adetailedbyte-by-byte

descriptionisgivenforeachdescriptortoassistUSB

peripheraldesignersinunderstandingUSBdescrip-

tors.ForthebasicsofUSBdescriptors,refertoTB054,

“AnIntroductiontoUSBDescriptorswithaGamePort

toUSBGamePadTranslatorExample”.TB055PS/2toUSBMouseTranslatorIMPLEMENTATIONAuthor:RestonConditMicrochipTechnologyInc.HardwareThePS/2portisa6-pinDIN.Onlyfourpinsareused:OVERVIEWGroundThisTechnicalBriefdetailsthetranslationofaPS/2PowermousetoaUSBmouseusingthePIC16C745/765.TheClockPIC16C745/765is