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Intel 80312 I/O Companion Chip - ECEE

Intel 80312 I/O Companion Chip - ECEE

Intel 80312 I/O Companion Chip - ECEE

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<strong>Intel</strong> ® <strong>80312</strong> I/O <strong>Companion</strong> <strong>Chip</strong>Test FeaturesFigure 14-3.Example Showing Typical JTAG OperationsTCKTMS1 1 1 1 1 0 1 1 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0TDI1 0 0 0IR Shift Reg4 bits longDon'tCare00011000010000100001Don'tCareParallel OutOf IROld Inst = abcd New Inst = 0001 2DR Shift Reg(n bits long)Don'tCareRegisterSelectedInstructionRegisterBoundary Scan Reg.TDOd c b aP00P01P02P03P04P05P06Pṉ4Pṉ3Pṉ2Pṉ1RESETRESETRESETRESETRESETRUN TEST/IDLESELECT DR SCANSELECT IR SCANCAPTURE IRSHIFT IRSHIFT IRSHIFT IRSHIFT IREXIT1 IRUPDATE IRSELECT DR SCANCAPTURE DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DRSHIFT DREXIT 1 DRUPDATE DRRUN TEST/IDLERUN TEST/IDLERUN TEST/IDLERUN TEST/IDLEA6807-0114-24 Developer’s Manual

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