參數(shù)資料
型號: MCIMX31LCVMN4D
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA473
封裝: 19 X 19 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, BGA-473
文件頁數(shù): 26/108頁
文件大?。?/td> 2878K
代理商: MCIMX31LCVMN4D
MCIMX31C/MCIMX31LC Technical Data, Rev. 4.3
24
Freescale Semiconductor
Electrical Characteristics
Figure 11. Multiword DMA (MDMA) Timing
Figure 12 shows timing for MDMA read, Figure 13 shows timing for MDMA write, and Table 24 lists the
timing parameters for MDMA read and write.
Table 23. PIO Write Timing Parameters
ATA
Parameter
Value
Controlling
Variable
t1
t1 (min) = time_1 * T – (tskew1 + tskew2 + tskew5)
time_1
t2
t2w
t2 (min) = time_2w * T – (tskew1 + tskew2 + tskew5)
time_2w
t9
t9 (min) = time_9 * T – (tskew1 + tskew2 + tskew6)
time_9
t3
t3 (min) = (time_2w – time_on)* T – (tskew1 + tskew2 +tskew5)
If not met, increase
time_2w
t4
t4 (min) = time_4 * T – tskew1
time_4
tA
tA = (1.5 + time_ax) * T – (tco + tsui + tcable2 + tcable2 + 2*tbuf)
time_ax
t0
t0(min) = (time_1 + time_2 + time_9) * T
time_1, time_2r,
time_9
Avoid bus contention when switching buffer on by making ton long enough.
Avoid bus contention when switching buffer off by making toff long enough.
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MCIMX31CVMN4D,
MCIMX31LCVMN4D,
MCIMX31CVMN4C,
MCIMX31LCVMN4C
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