IMX53IEC datasheet(78/173 Pages) FREESCALE

tên linh kiện	IMX53IEC

Giải thích chi tiết về linh kiện	i.MX53 Applications Processors for Industrial Products

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i.MX53 Applications Processors for Industrial Products, Rev. 6

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.MX53 such as MC33902 from

Freescale.The i.MX53 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—

M21

REF_CLK to FEC_RXD[1:0], FEC_RX_DV, FEC_RX_ER

hold

2—

1 Test conditions: 25pF on each output signal.

Table 55. 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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