IMX53CEC datasheet(112/204 Pages) FREESCALE

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i.MX53xD Applications Processors for Consumer Products, Rev. 2

112

Freescale Semiconductor

Electrical Characteristics

4.7.12.1

PIO Mode Read Timing

Figure 64 shows timing for PIO read. Table 72 lists the timing parameters for PIO read.

Figure 64. PIO Read Timing Diagram

Table 72. PIO Read Timing Parameters

ATA

Parameter

from Figure 64

Value

Controlling

Variable

t1(min) = time_1 * T – (tskew1 + tskew2 + tskew5)

time_1

t2 (read)

t2r

t2(min) = time_2r * T – (tskew1 + tskew2 + tskew5)

time_2r

t9(min) = time_9 * T – (tskew1 + tskew2 + tskew6)

time_9

t5(min) = tco + tsu + tbuf + tbuf+ tcable1 + tcable2

time_2 (affects tsu and

tco)

—

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(min) = (time_1 + time_2r+ time_9) * T

time_1, time_2r, time_9

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