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MNSC140CORE датащи(PDF) 56 Page - Freescale Semiconductor, Inc |
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MNSC140CORE датащи(HTML) 56 Page - Freescale Semiconductor, Inc |
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56 / 88 page ![]() MSC8122 Technical Data, Rev. 13 2-22 Freescale Semiconductor Specifications 2.5.9 Timer Timing 2.5.10 Ethernet Timing 2.5.10.1 Management Interface Timing Table 2-22. Timer Timing No. Characteristics Ref = CLKIN Unit Min Max 500 TIMERx frequency 10.0 — ns 501 TIMERx Input high period 4.0 — ns 502 TIMERx Output low period 4.0 — ns 503 TIMERx Propagations delay from its clock input •1.1 V core •1.2 V core 3.1 2.8 9.5 8.1 ns ns Figure 2-16. Timer Timing Table 2-23. Ethernet Controller Management Interface Timing No. Characteristics Min Max Unit 801 ETHMDIO to ETHMDC rising edge set-up time 10 — ns 802 ETHMDC rising edge to ETHMDIO hold time 10 — ns Figure 2-17. MDIO Timing Relationship to MDC 500 502 501 TIMERx (Input) TIMERx (Output) 503 Valid ETHMDC ETHMDIO 802 801 |
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