TSB42AA4

具有 DTCP 内容保护功能的 1394 链路层控制器，用于消费类电子产品应用领域

Consumer Electronics Link ceLynx is a high-performance 1394 link layer device designed specifically to support advanced consumer electronics applications, particularly those applications which require the transmission of Moving Picture Expert Group 2 MPEG2 transport streams and encryption/decryption of those streams across a 1394 network. The device supports both digital video broadcasting DVB and DirecTV™ type MPEG2 streams using the digital transmission content protection method DTCP method of encryption, as well as digital video DV encoded streams. The ceLynx supports both the IEC 61883 standard for DVB and DV streams over 1394 and the 1394 Trade Association standard for DirecTV over 1394.

The ceLynx is also versatile enough to handle asynchronous data and asynchronous streams. A key feature of the ceLynx is its ability to handle multiple data type streams simultaneously; the user may transport DVB, DirecTV, DV data streams, and asynchronous data _simultaneously_. The ceLynx can also support multiple streams of the same data type simultaneously, for example, transmit or receive two DVB transport streams or two DV streams.

The ceLynx is full duplex, allowing simultaneous playback and recording of audio/video data. Full duplex support also includes the capability of using the DTCP method, simultaneously using the two embedded M6 cipher modules. The large internal 8-Kbyte FIFO is very flexible, allowing the user to partition it into eight independent first in first out FIFOs and allowing the user to determine the exact configuration of each of these FIFOs to fit the application. Advanced features have been added to support program ID PID filtering and packet insertions.

The ceLynx is also designed to interface seamlessly with popular MPEG2 decoder chipsets. This decreases the design-in effort of customers when using these popular chipsets.

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DTCP content protection only. A separate document explains the DTCP hardware errata for TSB42AA4. It is available upon request to DTLA licensees only.

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Interfaces directly to industry standard 400-, 200-, and 100-Mbps physical layer devices, including Texas Instruments TSB41LV0X and TSB41AXX family of physical layer devices

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Compliant with IEEE 1394-1995 and IEEE 1394a-2000 standards

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MPEG2 time stamp-based release, as described in IEC 61883-4

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High-speed data interface HSDI:

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Byte-wide or serial mode

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Two independent HSDI ports

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Bidirectional

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Several control modes for a variety of applications

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Connects seamlessly to common MPEG2 decoder chipsets

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16-bit microprocessor interface supports Motorola 68000/68020-style bus

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Large 8K-byte FIFO can be configured up to eight independent Tx or Rx FIFOs

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8K-byte FIFO supports the following data types:

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DVB MPEG2 transport streams IEC 61883-4

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DirecTV™L transport streams

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DV program streams IEC 61883-2

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Asynchronous streams

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Support for external processor DMA

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Programmable data-/space-available indications for flow control; _almost full_ and _almost empty_ indicators

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Supports bus manager functions and automatic 1394 self-ID verification

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Interrupt driven to minimize host polling

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Single 3.3-V supply

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Separate async acknowledge buffer decreases the ack-tracking burden on host

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JTAG interface to support post-assembly scan of device I/O

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Bus holder isolation

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Embedded support for DTCP content protection:

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Two M6 baseline ciphers one per HSDI port

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Random number generator in hardware

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SHA-1 secure hash algorithm in hardware

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Authentication key cipher in hardware

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Optional auto-configuration for MPEG2/DV transmit and receive functions

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PID filtering and packet insertion for MPEG2 transport stream

DirecTV is a trademark of Hughes Communications, Inc.