Milpitas, Calif.California Micro Devices has introduced a serial interface display controller for wireless handsets that incorporates the VESA Standard Mobile Display Digital Interface (MDDI) link, which is fully compatible with QUALCOMM's Mobile Station Modem (MSM) chipset.
For more on the standard, click here: www.cdmatech.com/technologies/mddi.jsp.
The CM5100 is a dual display and audio controller that features a fully compliant, MDDI based serial client, an integrated display controller with embedded memory that supports primary thin film transistor (TFT) liquid crystal displays (LCDs) with resolutions up to QVGA (320x240) and secondary displays with up to QCIF+ (176x220) resolution. The CM5100's architecture is optimized for use with TFT LCD modules that feature drivers integrated directly on the display glass. It also allows the use of low cost, RAM-less drivers for non-integrated display modules.
The CM5100 supports all necessary video, audio and control packet types recommended by the MDDI specification. The integrated MDDI client transceiver is Type I (internal mode, 15 cm maximum cable length), consisting of one data pair, one strobe pair and a dedicated power supply pair that can support a data rate of up to 385-Mbits/ss. As a result, the CM5100 requires only six lines operating at lower power compared to traditional parallel interfaces that could include up to sixty lines to control both displays and other resources.
The internal video mapper contained in the CM5100 enables it to operate as a display controller with an integrated frame buffer for a main panel of up to QVGA resolution through a standard RGB interface, and support a secondary "smart" display through a CPU type of interface. Audio packets can also be transferred through the MDDI pipe and be redirected to a local stereo audio codec through the I2S interface. The I2C host interface allows connecting the CM5100 to any I2C slave device allowing it to be controlled through the MDDI interface.
Housed in a 100 bump, 0.5mm pitch Wafer Level Chip Scale Package with a form factor of just 5.0mm x 5.0mm, the CM5100 is claimed to be the industry's smallest MDDI based display controller.
Evaluation boards and chip samples of the CM5100 are available now. Chip pricing starts at $6in 1,000 unit quantities. Volume production is scheduled for the fourth quarter of 2006.
California Micro Devices Inc., 1-800-325-4966, www.calmicro.com