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MPC8540CPX667JC 数据表(PDF) 47 Page - Freescale Semiconductor, Inc |
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MPC8540CPX667JC 数据表(HTML) 47 Page - Freescale Semiconductor, Inc |
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47 / 104 page  MPC8540 Integrated Processor Hardware Specifications, Rev. 4 Freescale Semiconductor 47 JTAG Figure 24 provides the AC test load for TDO and the boundary-scan outputs of the MPC8540. Figure 24. AC Test Load for the JTAG Interface Figure 25 provides the JTAG clock input timing diagram. Figure 25. JTAG Clock Input Timing Diagram Figure 26 provides the TRST timing diagram. Figure 26. TRST Timing Diagram Figure 27 provides the boundary-scan timing diagram. Figure 27. Boundary-Scan Timing Diagram Output OVDD/2 RL = 50 Ω Z0 = 50 Ω JTAG tJTKHKL tJTGR External Clock VM VM VM tJTG tJTGF VM = Midpoint Voltage (OVDD/2) TRST VM = Midpoint Voltage (OVDD/2) VM VM tTRST VM = Midpoint Voltage (OVDD/2) VM VM tJTDVKH tJTDXKH Boundary Data Outputs Boundary Data Outputs JTAG External Clock Boundary Data Inputs Output Data Valid tJTKLDX tJTKLDZ tJTKLDV Input Data Valid Output Data Valid |
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