Overview

The SBPH400-3 provides the analog transceiver functions needed to implement a 3 port node in an IEEE 1394-1995 cable network. There are 2 differential line transceivers in each cable port. The following main functions are included in the chip:

• Detection of connection status using line condition detection circuitry.

• Node initialization and bus arbitration.

• Reception and Transmission of Data Strobe Bit Level encoded packets

• Interface to higher level protocol devices (Link layer).

• Production test through JTAG

FEATURES

■ 3 ports fully compliant with IEEE 1394-1995 cable environment specification

■ Fully implements IEEE P1394a D2.0 proposal

■ S100, S200 and S400 speeds

■ IEEE P1394a proposal PHY-LINK interface

■ IEEE P1394a proposal Suspend/Resume

■ OHCI support

■ Per port disable

■ Automatic power saving

■ Optional isolation support

■ IEEE P1394a proposal arbitration enhancements

■ IEEE P1394a proposal register set and remote register read

■ Advanced Data-Strobe clock and data recovery

■ Digital delay-lock loop technology - no filtering capacitors

■ Built-in self-test (BIST) of analog and digital port logic

■ JTAG Test Access Port

■ 3.3V supply

■ 80 pin plastic TQFP package

APPLICATIONS

■ Host processor interface

■ Host processor adapter cards

■ Digital set-top box

■ Digital Video Recorder/ Player

■ Repeaters