Data Sheet
Table Of Contents
- 1 Scope
- 2 Introduction
- 3 Module Variants
- 4 Functional Description
- 5 Block Diagrams
- 6 General characteristics
- 7 Electrical Characteristics
- 8 Pin Definitions
- 9 Power States
- 10 Crystal Oscillator Requirement
- 11 Power-On Signal Timing Diagrams
- 12 Host interface
- 13 Mechanical Specifications
- 14 Soldering Recommendations
- 15 Wi-Fi / Bluetooth MAC ID
- 16 Miscellaneous
- 17 Regulatory
- 18 Ordering information
- 19 Bluetooth SIG Qualification
- 20 Additional Assistance
Sterling™ LWB+
Datasheet
https://www.lairdconnect.com/
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12 HOST INTERFACE
12.1 WLAN SDIO interface
The Sterling LWB+ module WLAN section supports SDIO version 2.0. for both 1-bit (25 Mbps) and 4-bit modes (100 Mbps), as
well as high speed 4-bit mode (50 MHz clocks—200 Mbps).
Figure 13: Signal connections to SDIO host (SD 4-bit mode)
Note: Pull-ups (10K to 100K) are required on data and CMD lines. This is required during all operating states by either
external resistors or through pull-ups on the host device.
Figure 14: Signal connections to SDIO host (SD 1-bit mode)
Note: Pull-ups (10K to 100K) are required on data and CMD lines. This is required during all operating states by either
external resistors or through pull-ups on the host device.