Data Sheet

H158A-SM
FN-LINK TECHNOLOGY LIMITED Proprietary & Confidential Information
10
6 Host Interface Timing Diagram
6.1 SDIO Pin Description
The module supports SDIO version 2.0 for all 1.8V 4-bit UHSI speeds: SDR12(25 Mbps),
and SDR25(50Mbps) in addition to the 3.3V default speed(25MHz) and high speed (50
MHz).
SDIO Pin Description
SD 4-Bit Mode
DATA0 Data Line 0
DATA1 Data Line 1 or Interrupt
DATA2 Data Line 2 or Read Wait