STM32H7 datasheet(199/357 Pages) STMICROELECTRONICS

199 / 357 page

DS12110 Rev 10

199/357

STM32H742xI/G STM32H743xI/G

Electrical characteristics (rev Y)

320

Figure 56. MDIO Slave timing diagram

SD/SDIO MMC card host interface (SDMMC) characteristics

Unless otherwise specified, the parameters given in Table 110 for the SDIO/MMC interface

are derived from tests performed under the ambient temperature, fPCLK2 frequency and VDD

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

following configuration:

•

Output speed is set to OSPEEDRy[1:0] = 11

•

Capacitive load C = 30 pF

•

Measurement points are done at CMOS levels: 0.5VDD

•

I/O compensation cell enabled

•

HSLV activated when VDD ≤ 2.7 V

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

characteristics.

MSv40460V1

tsu(MDIO)

tMDC)

th(MDIO)

td(MDIO)

Table 110. Dynamic characteristics: SD / MMC characteristics, VDD = 2.7 to 3.6 V(1)(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPP

Clock frequency in data transfer mode

125

MHz

tW(CKL)

Clock low time

fPP =50 MHz

9.5

10.5

tW(CKH)

Clock high time

8.5

9.5

CMD, D inputs (referenced to CK) in MMC and SD HS/SDR/DDR mode

tISU

Input setup time HS

fPP ≥ 50 MHz

tIH

Input hold time HS

0.5

tIDW(3)

Input valid window (variable window)

CMD, D outputs (referenced to CK) in MMC and SD HS/SDR/DDR mode

tOV

Output valid time HS

fPP ≥ 50 MHz

-3.5

tOH

Output hold time HS

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