PDI1394L21BE

INTEGRATED CIRCUITS NOTICE: SEE ATTACHED ERRATA WHICH FOLLOWS THIS DOCUMENT FOR INFORMATION REGARDING CHANGED SPECIFICATIONS PDI1394L21 1394 full duplex AV link layer controller Preliminary specification Supersedes data of 1999 Mar 30 1999 Aug 06 Philips Semiconductors Philips Semiconductors Preliminary specification 1394 full duplex AV link layer controller PDI1394L21 1.0 FEATURES IEEE 1394–1995 Standard Link Layer Controller Hardware Support for the IEC61883 International Standard of Digital Interface for Consumer Electronics 2.0 DESCRIPTION The PDI1394L21, Philips Semiconductors Full Duplex 1394 Audio/Video (AV) Link Layer Controller, is an IEEE 1394–1995 compliant link layer controller featuring 2 embedded AV layer interfaces. The AV layers are designed to pack and un-pack application data packets for transmission over the IEEE 1394 bus using isochronous data transfers. Because of its full duplex architecture, the PDI1394L21 is capable of receiving and transmitting isochronous data during the same bus cycle. Two 8 bit AV ports, each with its own buffer (FIFO), receive and output isochronous data for transmission and reception of bus packets. Each port can be configured to receive or transmit, however, the other port always performs the opposite function. Half duplex operation is also permitted. The application data is packetized according to the IEC 61883 International Standard of Interface for Consumer Electronic Audio/Video Equipment. Both AV layer interfa...