In short, this Catalog CSSP enables the translation of USB to SDIO, meant for use in systems whose processors are either SDIO-port limited or don’t even have SDIO ports.
Here’s why we like this, and like it a lot: smartphones and tablets are driving the technology curve for a lot of associated markets such as medical, industrial, and infrastructure. Devices meant for smartphones and tablets are continually smaller, more readily-available, and perhaps most importantly, cheaper. Things like GPS and Wi-Fi/Bluetooth peripheral devices, which may have been designed for smartphones, are now able to find their way into these associated markets. While great on the surface, once engineers and system designs in those associated markets start to design, they often realize that these type of peripheral devices are designed to interface with their host system in a way that is quite different from the way devices have interfaced in the past.
For instance, Wi-Fi/Bluetooth peripheral devices in smartphones interface to the host processor (internally, of course) through an SDIO port. When a medical OEM wants to use one of these smartphones-centric Wi-Fi/Bluetooth modules, they may discover that their processor may not have enough SDIO ports to support all requirements, or not even have SDIO ports.
QuickLogic can solve this problem by providing a solution that translates the SDIO interface to a USB interface. We communicate directly with the SDIO peripheral device, and (internally on our device) encode not only the data to a USB format, but also command and control signals. We then send those via USB to the host processor, which in turn decodes the data and command & control signals. We also perform decoding of signals from USB to SDIO when the host processor is instructing the peripheral SDIO device.
Based on the ArcticLink II CX, the USB-to-SDIO Catalog CSSP is available today by contacting QuickLogic.