FS32K142HAT0MLHT datasheet(62/84 Pages) NXP

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Table 36. RMII signal switching specifications

(continued)

Symbol

Description

Min.

Max.

Unit

RMII7

RMII_CLK to TXD[1:0], TXEN invalid

—

RMII8

RMII_CLK to TXD[1:0], TXEN valid

—

RMII2

RMII1

RMII4

RMII3

Valid data

RMII_CLK(input)

RXD[n:0]

CRS_DV

RXER

Figure 26. RMII receive diagram

RMII7

RMII8

Valid data

RMII6

RMII5

RMII_CLK (input)

TXD[n:0]

TXEN

Figure 27. RMII transmit diagram

The following table describes the MDIO electrical characteristics.

• Measurements are with maximum output load of 25 pF, input transition of 1 ns and

pad configured with fastest slew settings (DSE = 1'b1).

• I/O operating voltage ranges from 2.97 V to 3.6 V

• While doing the mode transition (RUN -> HSRUN or HSRUN -> RUN ), the

interface should be OFF.

• MDIO pin must have external Pull-up.

Table 37. MDIO timing specifications

Symbol

Description

Min.

Max.

Unit

—

MDC Clock Frequency

—

2.5

MHz

Table continues on the next page...

Communication modules

S32K1xx Data Sheet, Rev. 9, 09/2018

NXP Semiconductors

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