MCIMX31LDVKN5D Freescale, MCIMX31LDVKN5D Datasheet - Page 28
MCIMX31LDVKN5D
Manufacturer Part Number
MCIMX31LDVKN5D
Description
Manufacturer
Freescale
Datasheet
1.MCIMX31LDVKN5D.pdf
(118 pages)
Specifications of MCIMX31LDVKN5D
Operating Temperature (min)
-20C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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Electrical Characteristics
Figure 12
timing parameters for MDMA read and write.
28
Parameter
ATA
—
—
tA
t1
t2
t9
t3
t4
t0
shows timing for MDMA read,
from
Parameter
Figure 11
t2w
—
tA
—
—
—
t1
t9
t4
t1 (min) = time_1 * T – (tskew1 + tskew2 + tskew5)
t2 (min) = time_2w * T – (tskew1 + tskew2 + tskew5)
t9 (min) = time_9 * T – (tskew1 + tskew2 + tskew6)
t3 (min) = (time_2w – time_on)* T – (tskew1 + tskew2 +tskew5)
t4 (min) = time_4 * T – tskew1
tA = (1.5 + time_ax) * T – (tco + tsui + tcable2 + tcable2 + 2*tbuf)
t0(min) = (time_1 + time_2 + time_9) * T
Avoid bus contention when switching buffer on by making ton long enough.
Avoid bus contention when switching buffer off by making toff long enough.
Figure 11. Multiword DMA (MDMA) Timing
MCIMX31/MCIMX31L Technical Data, Rev. 4.3
Table 25. PIO Write Timing Parameters
Figure 13
shows timing for MDMA write, and
Value
Freescale Semiconductor
Table 26
If not met, increase
time_1, time_2r,
Controlling
Variable
time_2w
time_2w
time_ax
time_9
time_4
time_9
time_1
—
—
lists the