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
Set-top Boxes
Multimedia tape and disk drives
Televisions