Data Sheet

LWB5+
Datasheet
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H OST I NTERFACE S PECIFICATIONS 
10.1 SDIOSpecifications
The LWB5+ series wireless module SDIO host interface pins are powered from the VIO_SD voltage supply. The SDIO
electrical specifications are identical for the 1-bit SDIO and 4-bit SDIO modes.
10.1.1 DefaultSpeed,High‐speedModes
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Figure 2: SDIO protocol timing diagram--- default mode (3.3V)
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Figure 3: SDIO protocol timing diagram--- High-Speed mode (3.3V)
Note: Over full range of values specified in the Recommended Operating Conditions unless otherwise specified.
Table 20: SDIO timing requirements
Symbol Parameter Condition Min. Typ. Max. Unit
fPP Clock Frequency
Default Speed
High-Speed
0
0
-
-
25
50
MHz
T WL Clock low time
Default Speed
High-Speed
10
7
-
-
-
-
ns