Technical data

Electrical Characteristics

MCIMX31C/MCIMX31LC Technical Data, Rev. 4.3

Freescale Semiconductor 25

Figure 12. MDMA Read Timing Diagram

Figure 13. MDMA Write Timing Diagram

Table 24. MDMA Read and Write Timing Parameters

ATA

Parameter

from

Figure 12,

Figure 13

Value

Controlling

Variable

tm, ti tm tm (min) = ti (min) = time_m * T – (tskew1 + tskew2 + tskew5) time_m

td td, td1 td1.(min) = td (min) = time_d * T – (tskew1 + tskew2 + tskew6) time_d

tk tk tk.(min) = time_k * T – (tskew1 + tskew2 + tskew6) time_k

t0 — t0 (min) = (time_d + time_k) * T time_d, time_k

tg(read) tgr tgr (min-read) = tco + tsu + tbuf + tbuf + tcable1 + tcable2

tgr.(min-drive) = td – te(drive)

time_d

tf(read) tfr tfr (min-drive) = 0 —

tg(write) — tg (min-write) = time_d * T – (tskew1 + tskew2 + tskew5) time_d

tf(write) — tf (min-write) = time_k * T – (tskew1 + tskew2 + tskew6) time_k

tL — tL (max) = (time_d + time_k–2)*T – (tsu + tco + 2*tbuf + 2*tcable2) time_d, time_k

tn, tj tkjn tn= tj= tkjn = (max(time_k,. time_jn) * T – (tskew1 + tskew2 + tskew6) time_jn

—ton

toff

ton = time_on * T – tskew1

toff = time_off * T – tskew1

—