MCIMX255AJM4A Freescale, MCIMX255AJM4A Datasheet - Page 43

• Manufacturer Part Number: MCIMX255AJM4A
• Manufacturer: Freescale

Specifications of MCIMX255AJM4A

• Lead Free Status / RoHS Status: Compliant

Freescale Semiconductor
tcable1
tcable2
tskew1
tskew2
tskew3
tskew4
tskew5
tskew6
Name
ti_ds
ti_dh
tbuf
tsui
tco
tsu
thi
T
Bus clock period
Set-up time ata_data to ata_iordy edge (UDMA-in only)
Hold time ata_iordy edge to ata_data (UDMA-in only)
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
Maximum difference in buffer propagation delay for 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
Maximum difference in buffer propagation delay for any of the following signals
ata_iordy, ata_data (read)
Maximum buffer propagation delay
cable propagation delay for ata_data
cable propagation delay for control signals ata_dior, ata_diow, ata_iordy,
ata_dmack
Maximum difference in cable propagation delay between ata_iordy and
ata_data (read)
Maximum difference in cable propagation delay between (ata_dior, ata_diow,
ata_dmack) and ata_cs0, ata_cs1, ata_da2, ata_da1, ata_da0,
ata_data(write)
Maximum difference in cable propagation delay without accounting for ground
bounce
i.MX25 Applications Processor for Automotive Products, Rev. 4
Table 33. Timing Parameters
Description
UDMA0,UDMA1,UDMA2,UDMA3,UDMA4
UDMA2,UDMA3
UDMA0
UDMA1
UDMA4
UDMA5
UDMA5
Value/Contributing Factor
Peripheral clock frequency
Transceiver
Transceiver
Transceiver
12.0 ns
5.0 ns
4.6 ns
8.5 ns
8.5 ns
2.5 ns
Cable
Cable
Cable
Cable
Cable
15 ns
10 ns
7 ns
5 ns
4 ns
7 ns
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