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参数资料
型号： MCIMX514AJM6C
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PBGA529
封装： 19 X 19 MM, 0.8 MM PITCH, ROHS COMPLIANT, BGA-529
文件页数： 18/172页
文件大小： 2218K
代理商： MCIMX514AJM6C
i.MX51A Automotive and Infotainment Applications Processors, Rev. 4
114
Freescale Semiconductor
Electrical Characteristics
Table 91 shows ATA timing parameters.
Table 91. P-ATA Timing Parameters
Name
Description
Value/
Contributing Factor1
1 Values provided where applicable.
T
Bus clock period (ipg_clk_ata)
Peripheral clock frequency
ti_ds
Set-up time ata_data to ata_iordy edge (UDMA-in only)
UDMA0
UDMA1
UDMA2, UDMA3
UDMA4
15 ns
10 ns
7 ns
5 ns
ti_dh
Hold time ata_iordy edge to ata_data (UDMA-in only)
UDMA0, UDMA1, UDMA2, UDMA3, UDMA4
5.0 ns
tco
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
12.0 ns
tsu
Set-up time ata_data to bus clock L-to-H
8.5 ns
tsui
Set-up time ata_iordy to bus clock H-to-L
8.5 ns
thi
Hold time ata_iordy to bus clock H to L
2.5 ns
tskew1
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
7ns
tskew2
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
Transceiver
tskew3
Max difference in buffer propagation delay for any of following signals ata_iordy,
ata_data (read)
Transceiver
tbuf
Max buffer propagation delay
Transceiver
tcable1
Cable propagation delay for ata_data
Cable
tcable2
Cable propagation delay for control signals ata_dior, ata_diow, ata_iordy,
ata_dmack
Cable
tskew4
Max difference in cable propagation delay between ata_iordy and ata_data (read)
Cable
tskew5
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)
Cable
tskew6
Max difference in cable propagation delay without accounting for ground bounce
Cable
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