Secure Digital Card Managers
TargetSD-Bus
- Supports the higher throughput SD Bus interface, a 4 or 6 wire interface (plus power and ground) that provides a 1 or 4 bit data bus. Requires a dedicated SD Card Host Controller.
TargetSD-SPI
- Supports the 3 wire SPI interface (plus power and ground) common on microcontrollers and used to interface to EEPROMs, RTCs, etc. Lower throughput than the SD Bus interface but adequate for many applications.