STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
SD/SDIO MMC card host interface (SDIO) characteristics
Unless otherwise specified, the parameters given in Table 54 are derived from tests
performed under ambient temperature, f
frequency and V supply voltage conditions
PCLKx
DD
summarized in Table 10.
Refer to Section 5.3.13: I/O port characteristics for more details on the input/output alternate
function characteristics (D[7:0], CMD, CK).
Figure 50. SDIO high-speed mode
t
t
r
f
t
C
t
t
W(CKH)
W(CKL)
CK
t
t
OV
OH
D, CMD
(output)
t
t
ISU
IH
D, CMD
(input)
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Figure 51. SD default mode
CK
t
t
OVD
OHD
D, CMD
(output)
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