MCIMX253CJM4A Freescale, MCIMX253CJM4A Datasheet - Page 44
MCIMX253CJM4A
Manufacturer Part Number
MCIMX253CJM4A
Description
Manufacturer
Freescale
Datasheet
1.MCIMX253CJM4A.pdf
(142 pages)
Specifications of MCIMX253CJM4A
Lead Free Status / RoHS Status
Compliant
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3.7.2
Table 33
implementation of the ATA interface on silicon, the bus buffer used, the cable delay and cable skew.
44
OW7
OW8
OW9
tskew1
Name
ID
ti_ds
ti_dh
tsui
tco
tsu
thi
T
shows parameters used to specify the ATA timing. These parameters depend on the
Write 1 / read low time
Transmission time slot
Release time
ATA Timing Parameters
1-Wire bus
(OWIRE_LINE)
Bus clock period
Set-up time ata_data to ata_iordy edge (UDMA-in only)
UDMA0
UDMA1
UDMA2,UDMA3
UDMA4
UDMA5
Hold time ata_iordy edge to ata_data (UDMA-in only)
UDMA0,UDMA1,UDMA2,UDMA3,UDMA4
UDMA5
Propagation delay bus clock L-to-H to
ata_cs0, ata_cs1, ata_da2, ata_da1, ata_da0, ata_dior, ata_diow, ata_dmack,
ata_data, ata_buffer_en
Set-up time ata_data to bus clock L-to-H
Set-up time ata_iordy to bus clock H-to-L
Hold time ata_iordy to bus clock H-to-L
Maximum difference in propagation delay bus clock L-to-H to any of the
following signals
ata_cs0, ata_cs1, ata_da2, ata_da1, ata_da0, ata_dior, ata_diow,
ata_dmack, ata_data (write), ata_buffer_en
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 6
Parameter
Figure 10. Read Sequence Timing Diagram
Table 32. WR1 /RD Timing Parameters
OW7
Table 33. Timing Parameters
Description
OW9
t
Symbol
RELEASE
t
t
LOW1
SLOT
OW8
Min.
60
15
1
Typ.
117
—
5
Value/Contributing Factor
Peripheral clock frequency
Freescale Semiconductor
Max.
120
15
45
12.0 ns
5.0 ns
4.6 ns
8.5 ns
8.5 ns
2.5 ns
15 ns
10 ns
7 ns
5 ns
4 ns
7 ns
Units
s
s
s
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