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IMX35 датащи(PDF) 102 Page - Freescale Semiconductor, Inc |
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IMX35 датащи(HTML) 102 Page - Freescale Semiconductor, Inc |
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102 / 148 page ![]() i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 6 Freescale Semiconductor 102 4.9.17.4 PIO Mode Timing Figure 76 shows timing for PIO read, and Table 65 lists the timing parameters for PIO read. Figure 76. PIO Read Timing Diagram Table 65. PIO Read Timing Parameters ATA Parameter Parameter from Figure 76 Value Controlling Variable t1 t1 t1 (min.) = time_1 × T – (tskew1 + tskew2 + tskew5) time_1 t2 t2r t2 min.) = time_2r × T – (tskew1 + tskew2 + tskew5) time_2r t9 t9 t9 (min.) = time_9 × T – (tskew1 + tskew2 + tskew6) time_3 t5 t5 t5 (min.) = tco + tsu + tbuf + tbuf + tcable1 + tcable2 If not met, increase time_2 t6 t6 0 — tA tA tA (min.) = (1.5 + time_ax) × T – (tco + tsui + tcable2 + tcable2 + 2 × tbuf) time_ax trd trd1 trd1 (max.) = (–trd) + (tskew3 + tskew4) trd1 (min.) = (time_pio_rdx – 0.5) × T – (tsu + thi) (time_pio_rdx – 0.5) × T > tsu + thi + tskew3 + tskew4 time_pio_rdx t0 — t0 (min.) = (time_1 + time_2 + time_9) × T time_1, time_2r, time_9 |
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