The TSB12LV32 (GP2Lynx) is a high-performance general-purpose IEEE 1394a-2000 link-layer controller (LLC) with the capability of transferring data between a host controller, the 1394 Phy-link interface, and external devices connected to the data mover port (local bus interface). The 1394 Phy-link interface provides the connection to the 1394 physical layer device and is supported by the LLC. The LLC provides the control for transmitting and receiving 1394 packet data between the microcontroller interface and the Phy-link interface via internal 2K byte FIFOs at rates up to 400 Mbit/s. The TSB12LV32 transmits and receives correctly formatted 1394 packets, generates and detects the 1394 cycle start packets, communicates transaction layer transmit requests to the Phy, and generates and inspects the 32-bit cyclic redundancy check (CRC).

The TSB12LV32 is capable of being cycle master (CM),1394 bus manager, 1394 isochronous resource manager (IRM)if additional control status registers (CSRs) are added via the external host controller, and supports reception of 1394 isochronous data on two channels and transmission of 1394 isochronous data on four channels.

The TSB12LV32 supports a direct interface to many microprocessors/microcontrollers by including programmable endian swapping. TSB12LV32 has a generic 16/8-bit host bus interface which includes support for the ColdFire™ microcontroller mode at rates up to 60 MHz. The microinterface can operate in byte or word (16 bit) accesses.Read more