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IMX53CEC датащи(PDF) 82 Page - Freescale Semiconductor, Inc

номер детали IMX53CEC
подробное описание детали  Applications Processors for Consumer Products
PDF  204 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

IMX53CEC датащи(HTML) 82 Page - Freescale Semiconductor, Inc

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i.MX53xD Applications Processors for Consumer Products, Rev. 2
82
Freescale Semiconductor
Electrical Characteristics
Figure 42. RMII Mode Signal Timing Diagram
4.7.6
Flexible Controller Area Network (FLEXCAN) AC Electrical
Specifications
The electrical characteristics are related to the CAN transceiver external to i.MX53xD such as MC33902
from Freescale.The i.MX53xD has two CAN modules available for systems design. Tx and Rx ports for
both modules are multiplexed with other I/O pins. See the IOMUXC chapter of the i.MX53 Reference
Manual to see which pins expose Tx and Rx pins; these ports are named TXCAN and RXCAN,
respectively.
M20
FEC_RXD[1:0], CRS_DV(FEC_RX_DV), FEC_RX_ER to
REF_CLK setup
4—
ns
M21
REF_CLK to FEC_RXD[1:0], FEC_RX_DV, FEC_RX_ER
hold
2—
ns
1 Test conditions: 25pF on each output signal.
Table 56. RMII Signal Timing (continued)
No.
Characteristics1
Min
Max
Unit
REF_CLK (input)
FEC_TX_EN
M16
M17
M18
M19
M20
M21
FEC_RXD[1:0]
FEC_TXD[1:0] (output)
FEC_RX_ER
CRS_DV (input)



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