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MPC8555CPXAPF датащи(PDF) 50 Page - Freescale Semiconductor, Inc |
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MPC8555CPXAPF датащи(HTML) 50 Page - Freescale Semiconductor, Inc |
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50 / 88 page ![]() MPC8555E PowerQUICC™ III Integrated Communications Processor Hardware Specifications, Rev. 4 50 Freescale Semiconductor JTAG Figure 31 provides the AC test load for TDO and the boundary-scan outputs of the MPC8555E. Figure 31. AC Test Load for the JTAG Interface Figure 32 provides the JTAG clock input timing diagram. Figure 32. JTAG Clock Input Timing Diagram Figure 33 provides the TRST timing diagram. Figure 33. TRST Timing Diagram Figure 34 provides the boundary-scan timing diagram. Figure 34. Boundary-Scan Timing Diagram Output Z0 = 50 Ω OVDD/2 RL = 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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