Pacific CommWare has just announced additional hardware and software support for the recently released 'TL16C750 UART (Universal Asynchronous Receiver/Transmitter). The '750 UART has 64-byte FIFOs, along with flow control and power management features. The '750 performs serial to parallel and parallel-to-serial data conversion on received and transmitted characters. It can buffer up to 64-bytes of data to decrease interrupts to the host and reduce overflow errors in high speed communication systems. The 64-byte FIFOs are an increase over the traditional storage space of 16-bytes offered by most UARTs.
Pacific CommWare have released TurboCom/95™ Pro, which includes Microsoft® Windows 95 compatible drivers that can be used with any system that includes the ë750. This software can be purchased from Pacific CommWare as a standalone solution or with the TurboExpress™ Port 920 serial I/O card that includes the TL16C750 UART from TI.
For more information, contact Linda Cade at Pacific CommWare: 1-800-856-3818.
An application report is now available to help you use the TCM320ACxx (5-V) and TLV320ACxx (3-V) family of Voice Band Audio Processors (VBAP™). The VBAP is an audio codec that is commonly used in wireless communications systems and a variety of telecommunications, digital audio and multimedia products. For example, in a cellular telephone the VBAP sends voice data to the Digital Signal Processor (DSP) and allows the received signal to be heard through an earphone. To reduce component count and simplify cellular handset designs, the VBAP contains its own A/D and D/A converters, amplifiers, antialiasing filters, microphone bias supply and smoothing filters. Devices in the 3-V family, including the TLV320AC36, operate from a single 3-V supply, reducing system power consumption.
The report explains in detail the VBAPs features, circuit functions and principles of operation. It answers common questions relating to the VBAPs fixed and variable data rate modes, digital loop-back test methods, frame sync circuit, and gain analysis. Finally, it explains application design considerations such as reducing system noise, interfacing the device to a DSP and the use of the VBAP with an audio auxiliary input.
Vol 18, August, 1996
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