Physical Layer Devices

1394 Serial Bus Devices

MPEG2Lynx - TSB12LV41

Product Description

The TSB12LV41 provides a 1394 interface for high-performance audio, video, and data applications at up to 200M bits/s. It is suitable for set-top boxes, multimedia tape and disk drives, and other consumer electronic devices requiring MPEG-2 formatted isochronous data transfer according to the proposed IEC 1883 specification. The TSB12LV41 also supports non-MPEG-2/DSS isochronous and asynchronous data transfer with an auto-packetization feature.

The TSB12LV41 interfaces directly to most microprocessors and microcontrollers, including the TSM320AV7000 family of DSP solutions from Texas Instruments. The bulky data interface (BDIF) enables MPEG-2, DSS, isochronous, or asynchronous data transfer in bit-wide, byte-wide, and memory-mapped modes. A 256-byte control FIFO allows asynchronous transmit and receive control packets while an 8K BDIF FIFO provides independent logical FIFOs for MPEG-2/DSS, isochronous, and asynchronous data transmit and receive. The BDIF FIFO performs a hardware asynchronous packet transmit retry for up to 256 x 125 µs. The TSB12LV41 supports full-width time-stamped offsets for MPEG-2 and DSS transmit and receive, and also performs age filtering functions.

The TSB12LV41 (MPEG2Lynx) link-layer controller (LLC) complies with the IEEE 1394-1995 specification (1394-1995) for high-performance serial bus. It transmits and receives correctly formatted 1394 packets, detects lost cycle-start packets, and generates and inspects the 32-bit cyclic redundancy check (CRC). The TSB12LV41 is also capable of performing the functions of cycle master (CM), isochronous resource manager (IRM), and bus manager (BM).

Target Applications