Related Product Information

In This Issue
   Wireless
Wireless Wonders

   DSP Solutions
Industry's first DSP controller with
   flash memory and CAN interface
   to hit the market
Applying technology in the
   real world
TI ships 35 millionth DSP solution
   to 3Com
TMS320: Bringing ease-of-use and
   faster time-to-market to
   DSP designers
App Report: The implementation
   of G.726 Adaptive Differential
   Pulse Code Modulation
   (ADPCM) on TMS320C54x DSP

   Memory
Memory device offers a burst
   configuration in a flash

   Mixed-Signal and Analog
PCM codec/filter combos
Audio Power Program
The latest scoop on OHCI,
   PHY devices
2.5-V voltage supervisor
Video decoder/encoder chips
   for high-quality video
High-speed op amp
Infrared controller, transceiver
Universal Bus Transceiver
MOSFET drivers

   Networking
New RMII spec for easier
   switching
Multichannel communications
   controllers

TI&ME offers personalized
   web information retrieval

Support from PIC

Trade Shows

The industry's first 1394 Open Host Controller Interface (OHCI) device and a new family of 400-Mbps physical layer interface (PHY) chips conforming to the IEEE 1394-1995 and 1394.A specifications are some of the latest mixed-signal developments from Texas Instruments. The devices will benefit desktop and portable PCs, work-stations, add-in cards and peripherals such as hard disk drives and printers, digital video disks (DVDs) and digital VCRs and televisions.

OHCI - The new TI 1394 OHCI-Lynx™ controller provides link layer functionality by coordinating the reception, transmission and routing of data over the 1394 bus and managing the bus interface to memory. OHCI compatibility allows the operating system to communicate through a universal software driver instead of a separate driver for each 1394 chip. Other supported standards include PCI 2.1, IEEE 1394.A and Microsoft's PC 97 and PC 98 design guidelines.

The OHCI-Lynx architecture, based on a set of deep 8K FIFOs, supports PCI bus master data bursts at rates as high as 132 megabytes per second, reducing the chance of performance bottlenecks due to bus latency. The device conforms to the power-saving PCI Power Management Specification and is compatible with both 3.3-V and 5-V signaling environments.

OHCI-Lynx interfaces directly to all TI PHYs and is compatible with a wide range of 1394 PHYs capable of speeds of 100, 200 or 400 Mbps.

Multiport PHYs - The new 400-Mbps PHY family performs the transceiver functions of initializing the 1394 communications link, arbitrating for channel access and placing data packets on the medium. The devices will offer two, three, four or six ports.

A power-down mode and inactive port disable make the PHYs well suited for portable and handheld systems. The devices interface directly to TI's 1394 link layer chips and interoperate with other vendors' PHY devices that conform to the 1394 specification.

The OHCI-Lynx and the first 400-Mbps PHY device are now sampling, with volume production scheduled for 2Q98.