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MPC5200 датащи(PDF) 61 Page - Freescale Semiconductor, Inc |
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MPC5200 датащи(HTML) 61 Page - Freescale Semiconductor, Inc |
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61 / 80 page ![]() Electrical and Thermal Characteristics MPC5200 Data Sheet, Rev. 4 Freescale Semiconductor 61 3.3.16 GPIOs and Timers 3.3.16.1 General and Asynchronous Signals The MPC5200 contains several sets if I/Os that do not require special setup, hold, or valid requirements. Most of these are asynchronous to the system clock. The following numbers are provided for test and validation purposes only, and they assume a 133 MHz internal bus frequency. Figure 46 shows the GPIO Timing Diagram. Table 50 gives the timing specifications. Figure 46. Timing Diagram—Asynchronous Signals Table 50. Asynchronous Signals Sym Description Min Max Units SpecID tCK Clock Period 7.52 — ns A16.1 tIS Input Setup for Async Signal 12 — ns A16.2 tIH Input Hold for Async Signals 1 — ns A16.3 tDV Output Valid — 15.33 ns A16.4 tDH Output Hold 1 — ns A16.5 Output Input tCK valid valid tDV tDH tIS tIH |
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