ARM Processor Wireless Connectivity Hardware specifications

General Description
TIWi LSR module is an Integrated Transceiver Module for WLAN and Bluetooth. It is a high performance 2.4GHz IEEE 802.11 b/g/n, Bluetooth 2.1 + EDR radio with a cost effective, pre-certified footprint.


 * IEEE 802.11 b,g,n,d,e,i compliant
 * Supports Bluetooth 2.1 + EDR, with extended range output power
 * Module size is 18mm x 13mm x 1.9mm

Typical SW modification needed when using different HW
The WLAN portion of the WL1271 interfaces with the Host platform via the following signals:


 * SDIO lines (SDIO_D0 - SDIO_D3, SDIO_CMD, SDIO_CLK)
 * WLAN interrupt request line (WLAN_IRQ)
 * WLAN enable/Disable signal (WL_EN)

Typical SW modification needed


 * The Module SDIO lines will be connected to the Host SDIO bus as such there is no special modifications needed to be done as the host specific bus will be defined by the SDIO driver.
 * WLAN interrupt and WLAN enable/disable signals are connected to Host GPIO’s as such the WLAN Driver GPIO setting will need to be updated per different HW configuration

For example for OMAP3530 the GPIO configuration is defined in /WiLink\platforms\hw\host_platform_omap3530\linux\host_platform.h file PMENA_GPIO is defined as GPIO 150 IRQ_GPIO is defined as GPIO 149


 * Fast Clock –

The difference of the Fast clock configuration is depends on Fast clock supply and frequency, the Fast clock configuration is defined in tiwlan.ini file that is located in WiLink\platforms\os\linux folder, and is defined by STRFRefClock registry key.

Layout Recommendation
Please refer to the following link to see the Layout recommendations: Solution Hardware

AM18x HW package
follow that link to see AM18x and WL1271 daughterboard complete HW package: 

AM/DM37xx/OMAP3530 HW package
follow that link to see DM3730/OMAP3530 WL1271 daughterboard complete HW package: 

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