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November 2, 1998
TI releases the TSB41LV03, 400Mbps PHY
2-port, 400Mbps Physical Layer Announced
New Integrated CardBus Controller from TI
TI offers Extended Temp. 1394 Devices
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TI releases the TSB41LV03, 400Mbps PHY TI has officially released the TSB41LV03 physical layer device. The new 3-port PHY is capable of data transmissions speeds of 100, 200, and 400 Mbps and interfaces directly to TI link layer devices of all three data rates. This device also supports optional electrical isolation. Each cable port incorporates two differential line transceivers, the transceivers include circuitry to monitor the line condition as needed or determine connection status, initialization and arbitration, and packet reception and transmission. The device is fully compliant with IEEE 1394-1995 and 1394.a including all PHY requirements for OHCI and full suspend/resume functionality, and meets the 400 Mbps requirement for Microsoft's PC'98 from a single 3.3 V supply. The TSB41LV03 device is available in a 80-pin TQFP and pricing is set at $9.45 in 1,000 unit quantities. The TSB41LV03 is the first of a complete family of 400Mbps devices. Also planned are 2, 4, & 6 port versions. Two new designer kits featuring the TSB41LV03 are also available today at only $275. The TSBKPCI403 and TSBKOHCI403 provide a 400Mbps capable design platform featuring the TSB12LV21B/PCILynx2 and TSB12LV22/OHCI-Lynx respectively.
You can find out more on the TSB41LV03 at...
Want to know more about TI Designer Kits? Go here...
Instead of pulling the SE (scan enable) pin directly to ground as recommended in the TSB41LV03 datasheet, the SE pin should be pulled low with a 1K Ohm or less valued resistor. This will enable future functionality to be implemented. This change will not affect current operation of the PHYs, but will affect future enhancements and is recommended for all designs, including being retro-fitted into existing designs at an appropriate time. This affects all TI 400Mbps PHYs.
2-port, 400Mbps Physical Layer Announced A new IEEE-1394a physical layer chip (PHY), designed especially for notebook computers, was announced today. The TSB41LV02 allows data rates up to 400 megabits per second (Mbps) and provides two 1394 ports in a 64-pin TQFP (thin, quad, flat pack) package. This device along with the combined OHCI and Cardbus controller announced below, completes the TI total solution for 1394 in a notebook, but is also excellent for use in computer peripherals and consumer electronics. Samples of the TSB41LV02 are planned to be available in the first quarter of 1999, with production quantities also available in the first quarter. Suggested resale pricing in quantities of 1,000 is planned to be $4.99. For more information on the TSB41LV02, please contact your local TI Sales Office.
New Integrated CardBus Controller from TI The industry's first CardBus controller and IEEE-1394a open host controller interface (OHCI) link layer controller integrated into a single chip was announced today by Texas Instruments. The device saves designers valuable circuit board space by providing both dual-slot CardBus connectivity and a high-performance IEEE-1394 interface in one device. Integrating these two functions provides a unique solution for implementing 1394 in a notebook computer, docking station, small-factor and LCD (liquid crystal display) desktop systems. The new product, designated the PCI4450, leverages TI’s leadership in CardBus and 1394 technologies and demonstrates TI’s continued focus on bringing innovative mixed-signal products to market. The PCI4450 combines the highest performing OHCI link layer controller (OHCI-Lynx) with the highest performing CardBus controller (PCI1450) on the market today. Integration of CardBus and 1394a link layer functionality into a single controller provides board and power savings. Also this reduces PCI bus loading in comparison to discrete solutions. The PCI4450 CardBus capabilities include a pipelined architecture that has data rates greater than 130 megabytes per second. It also includes internal Zoom Video buffers to speed the video display process. It has programmable multifunction pins that can be set by the BIOS thus allowing design flexibility. The 1394 capabilities include guaranteed delivery of the largest possible asynchronous data packet (400Mbps) to support applications like hard disk drives and printers where individual bit integrity is vital. The device also has four transmit and four receive DMA contexts for isochronous data. This kind of data packet is used in real-time multimedia applications like audio and video where time constraints and bandwidth are essential. The PCI4450 also implements IEEE-1394a performance enhancements. Samples of the PCI4450 are planned to be available during the first quarter of 1999, with production quantities also available in the first quarter. Suggested resale pricing is planned to be $20.00 in 1,000 unit quantities.
For more information on the PCI4450, visit the PCIbus
Solutions website at...
Texas Instruments, among others, will showcase it's product offering at Comdex '98 on November 16-20 in Las Vegas, Nevada. We welcome you to visit the 1394 Trade Association's "break-out" room (N255-257) located on the second floor near the entrance to the Las Vegas Convention Center. Stop by the TI booth and experience, first hand, why TI is the leader in 1394 silicon. There will be several demonstrations, featuring TI silicon, including Device Bay, 1394 printer, and TI's 1394 camera chipset. Take time to browse all the demonstrations and see how many were developed with 1394 silicon from Texas Instruments. Hope to see you there.
Visit the TI Comdex website at...
I's talented staff of Application Engineers have recently released a new round of 1394 Application Reports. These reports will make it easier for you to design with TI 1394 silicon. The following reports were recently released:
Visit the TI 1394 Application Report Page at...
TI offers Extended Temp. 1394 Devices Currently TI has a wide extended temperature product portfolio that will meet your multimedia needs. The below table summarizes our current product offering and plans. For device availability please contact your local field sales representative. Released or Potential Future 1394 PHYs
TSB14C01A Released or Potential Future 1394 LINKs
TSB12C01A The above listed devices have been released in the extended temperature range or are potential future releases based on market demand. The table above does not include 1394 devices currently in design. New 1394 devices will be added to the table as they become available.
For more information on TI's Extended Temperature 1394 Devices, see...
Q: What can I do with the CPS pin on the TSB21LV03A phy if I am not using cable power? I don't have a voltage supply on the board that is in the range of 8V to 40V (per the IEEE 1394-1995 standard). A: Even if cable power is not being used on a node, if the node uses 6-pin cables it should have the CPS pin hooked to cable power through a 400KOhm resistor. The only instance where the CPS pin may not be hooked up to cable power is the case of a 4-pin connector. This is required since the CPS bit may be used to determine whether cable power is available to a particular node. If the CPS pin can not be hooked to cable power, it may to tied directly to PHY ground indicating cable power is not available. In other words, for power class 000 nodes (like nodes using 4-pin connectors or nodes using 6-pin connectors with the cable ground connected but cable power unconnected) the CPS pin should be tied to PHY GND. If using a TSB21LV03A or TSB11LV01 PHY, when CPS is tied to ground the CPSint bit will always be set (as noted in the datasheet) so the local node's SW must know to ignore it since the node can not supply, consume, or repeat cable power. For the TI TSB41LV0x PHYs the CPSint bit will only be set once. |
