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MPC8572ECLPXAVND Datasheet(PDF) 49 Page - Freescale Semiconductor, Inc |
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MPC8572ECLPXAVND Datasheet(HTML) 49 Page - Freescale Semiconductor, Inc |
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49 / 140 page  MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4 Freescale Semiconductor 49 Ethernet: Enhanced Three-Speed Ethernet (eTSEC) 8.4 eTSEC IEEE Std 1588™ AC Specifications Figure 26 shows the data and command output timing diagram. Figure 26. eTSEC IEEE 1588 Output AC Timing 1 The output delay is count starting rising edge if t T1588CLKOUT is non-inverting. Otherwise, it is count starting falling edge. Figure 27 shows the data and command input timing diagram. Figure 27. eTSEC IEEE 1588 Input AC timing Table 41 provides the IEEE 1588 AC timing specifications. Table 41. eTSEC IEEE 1588 AC Timing Specifications At recommended operating conditions with LVDD/TVDD of 3.3 V ± 5% or 2.5 V ± 5% Parameter/Condition Symbol Min Typ Max Unit Note TSEC_1588_CLK clock period tT1588CLK 3.3 — TTX_CLK*9 ns 1 TSEC_1588_CLK duty cycle tT1588CLKH /tT1588CLK 40 50 60 % — TSEC_1588_CLK peak-to-peak jitter tT1588CLKINJ —— 250 ps — Rise time eTSEC_1588_CLK (20%–80%) tT1588CLKINR 1.0 — 2.0 ns — Fall time eTSEC_1588_CLK (80%–20%) tT1588CLKINF 1.0 — 2.0 ns — TSEC_1588_CLK_OUT clock period tT1588CLKOUT 2*tT1588CLK —— ns — TSEC_1588_CLK_OUT TSEC_1588_PULSE_OUT TSEC_1588_TRIG_OUT tT1588OV tT1588CLKOUT tT1588CLKOUTH TSEC_1588_CLK TSEC_1588_TRIG_IN tT1588TRIGH tT1588CLK tT1588CLKH |
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