FEATURES

· DTCP content protection (TSB42AA4 only). A

separate document explains the DTCP

hardware errata for TSB42AA4. It is available

upon request to DTLA licensees only.

· Interfaces directly to industry standard 400-,

200-, and 100-Mbps physical layer devices,

including Texas Instruments TSB41LV0X and

TSB41AXX family of physical layer devices

· Compliant with IEEE 1394-1995 and IEEE

1394a–2000 standards

· MPEG2 time stamp-based release, as

described in IEC 61883-4

· High-speed data interface (HSDI):

– Byte-wide or serial mode

– Two independent HSDI ports

– Bidirectional

– Several control modes for a variety of

applications

– Connects seamlessly to common MPEG2

decoder chipsets

· 16-bit microprocessor interface supports

Motorola 68000/68020-style bus

· Large 8K-byte FIFO can be configured up to

eight independent Tx or Rx FIFOs

· 8K-byte FIFO supports the following data

types:

– DVB MPEG2 transport streams (IEC

61883-4)

– DirecTV™ transport streams

– DV program streams (IEC 61883-2)

– Asynchronous streams

– Support for external processor DMA

· Programmable data-/space-available

indications for flow control; almost full and

almost empty indicators

· Supports bus manager functions and

automatic 1394 self-ID verification

· Interrupt driven to minimize host polling

· Single 3.3-V supply

· Separate async acknowledge buffer

decreases the ack-tracking burden on host

· JTAG interface to support post-assembly

scan of device I/O

· Bus holder isolation

· Embedded support for DTCP content

protection:

– Two M6 baseline ciphers (one per HSDI

port)

– Random number generator in hardware

– SHA-1 secure hash algorithm in hardware

– Authentication key cipher in hardware

· Optional auto-configuration for MPEG2/DV

transmit and receive functions

· PID filtering and packet insertion for MPEG2

transport stream

DESCRIPTION

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.