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MPC5643L データシート(PDF) 112 Page - Freescale Semiconductor, Inc |
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MPC5643L データシート(HTML) 112 Page - Freescale Semiconductor, Inc |
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112 / 136 page  MPC5643L Microcontroller Data Sheet, Rev. 8.1 Electrical characteristics Freescale Semiconductor 112 Figure 24. JTAG boundary scan timing 3.20.4 Nexus timing Table 37. Nexus debug port timing1 1 JTAG specifications in this table apply when used for debug functionality. All Nexus timing relative to MCKO is measured from 50% of MCKO and 50% of the respective signal. No. Symbol Parameter Conditions Min Max Unit 1tMCYC D MCKO Cycle Time — 15.6 — ns 2tMDC D MCKO Duty Cycle — 40 60 % 3tMDOV D MCKO Low to MDO, MSEO, EVTO Data Valid2 2 For all Nexus modes except DDR mode, MDO, MSEO, and EVTO data is held valid until next MCKO low cycle. — –0.1 0.25 tMCYC 4tEVTIPW DEVTI Pulse Width — 4.0 — tTCYC 5tEVTOPW DEVTO Pulse Width — 1 tMCYC 6tTCYC D TCK Cycle Time3 — 62.5 — ns 7tTDC D TCK Duty Cycle — 40 60 % 8tNTDIS, tNTMSS D TDI, TMS Data Setup Time — 8 — ns 9 tNTDIH, tNTMSH D TDI, TMS Data Hold Time 5 — ns 10 tJOV D TCK Low to TDO/RDY Data Valid 0 25 ns TCK Output Signals Input Signals Output Signals 11 12 13 14 15 |
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