MCIMX31L FREESCALE [Freescale Semiconductor, Inc], MCIMX31L Datasheet - Page 73

• Manufacturer Part Number: MCIMX31L
• Description: Multimedia Applications Processors
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

1
4.3.5.2
Figure 9
Freescale Semiconductor
Parameter
Values provided where applicable.
tcable1
tcable2
tskew1
tskew2
tskew3
tskew4
tskew5
tskew6
Name
ATA
tbuf
t1
t2
t9
shows timing for PIO read, and
from
Max difference in propagation delay bus clock L-to-H to any of following signals
ata_cs0, ata_cs1, ata_da2, ata_da1, ata_da0, ata_dior, ata_diow, ata_dmack,
ata_data (write), ata_buffer_en
Max difference in buffer propagation delay for any of following signals
ata_cs0, ata_cs1, ata_da2, ata_da1, ata_da0, ata_dior, ata_diow, ata_dmack,
ata_data (write), ata_buffer_en
Max difference in buffer propagation delay for any of following signals ata_iordy, ata_data
(read)
Max buffer propagation delay
cable propagation delay for ata_data
cable propagation delay for control signals ata_dior, ata_diow, ata_iordy, ata_dmack
Max difference in cable propagation delay between ata_iordy and ata_data (read)
Max 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)
Max difference in cable propagation delay without accounting for ground bounce
PIO Mode Timing
Parameter
Figure 9
t2r
t1
t9
t1 (min) = time_1 * T - (tskew1 + tskew2 + tskew5)
t2 min) = time_2r * T - (tskew1 + tskew2 + tskew5)
t9 (min) = time_9 * T - (tskew1 + tskew2 + tskew6)
Table 23. ATA Timing Parameters (continued)
i.MX31/i.MX31L Advance Information, Rev. 1.4
Table 24. PIO Read Timing Parameters
Figure 9. PIO Read Timing Diagram
Table 24
Description
Preliminary
lists the timing parameters for PIO read.
Value
Electrical Characteristics
Contributing Factor
Controlling
Variable
transceiver
transceiver
transceiver
time_2r
time_3
time_1
Value/
cable
cable
cable
cable
cable
7 ns
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