PRT2011DAF4A datasheet(75/112 Pages) NXP

75 / 112 page

Electrical Characteristics

i.MX RT1064 Crossover Processors Data Sheet for Consumer Products, Rev. 2, 08/2020

NXP Semiconductors

4.9.4.1

ENET MII mode timing

This subsection describes MII receive, transmit, asynchronous inputs, and serial management signal

timings.

4.9.4.1.1

MII receive signal timing (ENET_RX_DATA3,2,1,0, ENET_RX_EN,

ENET_RX_ER, and ENET_RX_CLK)

The receiver functions correctly up to an ENET_RX_CLK maximum frequency of 25 MHz + 1%. There

is no minimum frequency requirement. Additionally, the processor clock frequency must exceed twice the

ENET_RX_CLK frequency.

Figure 47 shows MII receive signal timings. Table 64 describes the timing parameters (M1–M4) shown in

the figure.

Figure 47. MII receive signal timing diagram

1 ENET_RX_EN, ENET_RX_CLK, and ENET0_RXD0 have the same timing in 10 Mbps 7-wire interface mode.

4.9.4.1.2

MII transmit signal timing (ENET_TX_DATA3,2,1,0, ENET_TX_EN,

ENET_TX_ER, and ENET_TX_CLK)

The transmitter functions correctly up to an ENET_TX_CLK maximum frequency of 25 MHz + 1%.

There is no minimum frequency requirement. Additionally, the processor clock frequency must exceed

twice the ENET_TX_CLK frequency.

Table 64. MII receive signal timing

Characteristic1

Min.

Max.

Unit

ENET_RX_DATA3,2,1,0, ENET_RX_EN, ENET_RX_ER to

ENET_RX_CLK setup

5—

ENET_RX_CLK to ENET_RX_DATA3,2,1,0, ENET_RX_EN,

ENET_RX_ER hold

5—

ENET_RX_CLK pulse width high

35%

65%

ENET_RX_CLK period

ENET_RX_CLK pulse width low

35%

65%

ENET_RX_CLK period

ENET_RX_CLK (input)

ENET_RX_DATA3,2,1,0

ENET_RX_ER

ENET_RX_EN

(inputs)

PRT2011DAF4A bảng dữ liệu(PDF) 75 Page - NXP Semiconductors

PRT2011DAF4A bảng dữ liệu(HTML) 75 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL