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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MNSC140CORE датащи(PDF) 59 Page - Freescale Semiconductor, Inc |
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MNSC140CORE датащи(HTML) 59 Page - Freescale Semiconductor, Inc |
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59 / 88 page  AC Timings MSC8122 Technical Data, Rev. 13 Freescale Semiconductor 2-25 2.5.12 EE Signals Figure 2-22 shows the signal behavior of the EE pins. 2.5.13 JTAG Signals Figure 2-21. GPIO Timing Table 2-28. EE Pin Timing Number Characteristics Type Min 65 EE0 (input) Asynchronous 4 core clock periods 66 EE1 (output) Synchronous to Core clock 1 core clock period Notes: 1. The core clock is the SC140 core clock. The ratio between the core clock and CLKOUT is configured during power-on-reset. 2. Refer to Table 1-4 on page 1-6 for details on EE pin functionality. Figure 2-22. EE Pin Timing Table 2-29. JTAG Timing No. Characteristics All frequencies Unit Min Max 700 TCK frequency of operation (1/(T C × 4); maximum 25 MHz) 0.0 25 MHz 701 TCK cycle time 40.0 — ns 702 TCK clock pulse width measured at VM = 1.6 V •High •Low 20.0 16.0 — — ns ns 703 TCK rise and fall times 0.0 3.0 ns REFCLK GPIO (Output) GPIO (Input) Valid 603 High Impedance 604 605 602 601 EE1 out EE0 in 65 66 |
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