STM32H7 datasheet(312/357 Pages) STMICROELECTRONICS

312 / 357 page

Electrical characteristics (rev V)

STM32H742xI/G STM32H743xI/G

312/357

DS12110 Rev 10

Figure 110. MDIO Slave timing diagram

SD/SDIO MMC card host interface (SDMMC) characteristics

Unless otherwise specified, the parameters given in Table 209 and Table 210 for SDIO are

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

supply voltage summarized in Table 122: General operating conditions, with the following

configuration:

•

Output speed is set to OSPEEDRy[1:0] = 0x11

•

Capacitive load CL=30 pF

•

Measurement points are done at CMOS levels: 0.5VDD

•

IO Compensation cell activated.

•

HSLV activated when VDD ≤ 2.7 V

•

VOS level set to VOS1

Refer to Section 7.3.15: I/O port characteristics for more details on the input/output

characteristics.

MSv40460V1

tsu(MDIO)

tMDC)

th(MDIO)

td(MDIO)

Table 209. Dynamics 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

133

MHz

SDIO_CK/fPCLK2 frequency ratio

8/3

tW(CKL)

Clock low time

fPP =52MHz

8.5

9.5

tW(CKH)

Clock high time

fPP =52MHz

8.5

9.5

CMD, D inputs (referenced to CK) in eMMC legacy/SDR/DDR and SD HS/SDR(3)/DDR(3) mode

tISU

Input setup time HS

2.5

tIH

Input hold time HS

0.5

tIDW(4)

Input valid window (variable window)

CMD, D outputs (referenced to CK) in eMMC legacy/SDR/DDR and SD HS/SDR/DDR(3) mode

tOV

Output valid time HS

3.5

tOH

Output hold time HS

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