Data Sheet

15
FORM NO.: FR2-015_ A Responsible Department：WBU Expiry Date: Forever
The information contained herein is the exclusive property of AzureWave and shall not be distributed, reproduced, or
disclosed in whole or in part without prior written permission of AzureWave.
3.4 Host Interface
3.4.1 SDIO
SDIO Bus Timing (Default Mode)
Parameter
Symbol
Minimum
Typical
Maximum
Unit
SDIO CLK (All values are referred to minimum VIH and maximum VIL*)
Frequency – Data Transfer mode
fPP
0
–
25
MHz
Frequency – Identification mode
fOD
0
–
400
kHz
Clock low time
tWL
10
–
–
ns
Clock high time
tWH
10
–
–
ns
Clock rise time
tTLH
–
–
10
ns
Clock low time
tTHL
–
–
10
ns
Inputs: CMD, DAT (referenced to CLK)
Input setup time
tISU
5
–
–
ns
Input hold time
tIH
5
–
–
ns
Outputs: CMD, DAT (referenced to CLK)
Output delay time – Data Transfer mode
tODLY
0
–
14
ns