1394 Serial Bus Devices
GP2Lynx - TSB12LV32
Product Description
The TSB12LV32 (GP2Lynx) is a high-performance General-Purpuse IEEE 1394.A 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 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 micro-controller interface and the phy-link interface via internal
4K byte FIFOs at rates up to 400Mbit/s. The TSB12LV32 transmits and receives correctly formatted 1394
packets, generates and detects the start of isochronous 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), Isochronous Resource Manager (IRM), bus manager, and supports
reception of isochronous data on two channels.
The TSB12LV32 has support to directly interfaces to most microprocessors/microcontrollers including
programmable endian swapping. TSB12LV32 has a generic 16/8-bit host bus interface which supports the
ColdFireTM Microcontroller mode at rates up to 60Mhz. The micro-interface may operate in byte or word (16
bit) accesses. The Data Mover block in GP2Lynx is meant to handle an external memory interface of large
data blocks. The port can be configured to either transmit or receive data packets. The packets can be either
asynchronous, isochronous, or streaming data packets. Asynchronous or Isochronous receive packets will be
routed to the DM port or the GRF via the receiver routing control logic.
The internal FIFO is separated into a transmit FIFO and a receive FIFO each of 517 quadlets (2 Kbytes).
Asynchronous packets may be transmitted from the DM port or the internal FIFO. If there is contention the
FIFO has priority and will be transmitted first.
Target Applications
Digital Cameras
Printers
Scanners
For more information on the GP2Lynx - TSB12LV32, please contact your local
TI sales office.