STM32H7 datasheet(205/357 Pages) STMICROELECTRONICS

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DS12110 Rev 10

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STM32H742xI/G STM32H743xI/G

Electrical characteristics (rev Y)

320

Figure 63. Ethernet MII timing diagram

6.3.33

JTAG/SWD interface characteristics

Unless otherwise specified, the parameters given in Table 117 and Table 118 for JTAG/SWD

are derived from tests performed under the ambient temperature, frcc_c_ck frequency and

VDD supply voltage summarized in Table 24: General operating conditions, with the

following configuration:

•

Output speed is set to OSPEEDRy[1:0] = 0x10

•

Capacitive load C=30 pF

•

Measurement points are done at CMOS levels: 0.5VDD

Refer to Section 6.3.15: I/O port characteristics for more details on the input/output

characteristics.

Table 116. Dynamics characteristics: Ethernet MAC signals for MII(1)

1. Guaranteed by characterization results.

Symbol

Parameter

Min

Typ

Max

Unit

tsu(RXD) Receive data setup time

tih(RXD)

Receive data hold time

tsu(DV)

Data valid setup time

1.5

tih(DV)

Data valid hold time

tsu(ER)

Error setup time

1.5

tih(ER)

Error hold time

0.5

td(TXEN) Transmit enable valid delay time

4.5

6.5

td(TXD)

Transmit data valid delay time

7.5

ai15668b

MII_RX_CLK

MII_RXD[3:0]

MII_RX_DV

MII_RX_ER

td(TXEN)

td(TXD)

tsu(RXD)

tsu(ER)

tsu(DV)

tih(RXD)

tih(ER)

tih(DV)

MII_TX_CLK

MII_TX_EN

MII_TXD[3:0]

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