STM32H7 datasheet(203/357 Pages) STMICROELECTRONICS

Part #	STM32H7

Description	32-bit Arm® Cortex®-M7 480MHz MCUs, up to 2MB flash, up to 1MB RAM, 46 com. and analog interfaces

PDF	357 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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203 / 357 page

DS12110 Rev 10

203/357

STM32H742xI/G STM32H743xI/G

Electrical characteristics (rev Y)

320

Figure 60. ULPI timing diagram

Ethernet characteristics

Unless otherwise specified, the parameters given in Table 114, Table 115 and Table 116 for

SMI, RMII and MII are derived from tests performed under the ambient temperature,

frcc_c_ck frequency summarized in Table 24: General operating conditions, with the following

configuration:

•

Output speed is set to OSPEEDRy[1:0] = 10

•

Capacitive load C = 20 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 114 gives the list of Ethernet MAC signals for the SMI and Figure 61 shows the

corresponding timing diagram.

Table 114. Dynamics characteristics: Ethernet MAC signals for SMI(1)

1. Guaranteed by characterization results.

Symbol

Parameter

Min

Typ

Max

Unit

tMDC

MDC cycle time(2.5 MHz)

400

403

Td(MDIO) Write data valid time

1.5

tsu(MDIO) Read data setup time

th(MDIO)

Read data hold time

Clock

Control In

(ULPI_DIR,

ULPI_NXT)

data In

(8-bit)

Control out

(ULPI_STP)

data out

(8-bit)

tDD

tDC

tHD

tSD

tHC

tSC

ai17361c

tDC

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