DP83924 Datasheet | National Semiconductor

Features - Enhanced Supply Rejection s 100 pin package - Enhanced Jitter Performance s 10BASE-T and AUI interfaces - Diagnostic Endec Loopback s Automatic or manual selection of twisted pair or Attach- Squelch on Collision and Receive Pair ment Unit Interfaces on port 1 s Serial LED interface for LINK, POLARITY, ACTIVITY, s Direct Interface to NRZ patible controllers and ERROR. s IEEE 802.3u Auto-Negotiation between 10Mb/s Full s JTAG Boundary Scan per IEEE 1149.1 and Half Duplex data traffic and parallel detection s MII-like Serial management interface for configuration and monitoring of ENDEC/Transceiver operation. General Description System Diagram MAC Serial NRZ Interface RXD4,RXC4,COL4,CRS4 ISOLATION 10BASE-T TXD4,TXE4 TPI ports 1-4 RXD3,RXC3,COL3,CRS3 TXD3,TXE3 RXD2,RXC2,COL2,CRS2 DP83924B ISOLATION DP8392C TXD2,TXE2 10BASE-2 (port 1 option) RXD1,RXC1,COL1,CRS1 TXD1,TXE1 MDIO Serial Mgmt Interface 4TPHY™ is a trademark of National Semiconductor Corporation. TRI-STATE® is a registered trademark of National Semiconductor Corporation. © 1998 National Semiconductor Corporation .national. General Description (Continued) The various modes on the 4TPHY can be configured and controlled via the MII management interface. This management interface makes inter-operability with other manufacturers MAC units relatively easy. If no management interface is desired, most of the critical operating modes of the transceiver can be set via strapping options (latching configuration information during reset). The ENDEC section of the transceiver also supplies a simple Non-Returnto-Zero (NRZ) interface to transmit and receive data to/from standard 10 Mb/s MACs. The transceivers include on-chip filtered transmit outputs, which reduce emissions and eliminate the need for external filter. The DP83924BVCE maintains plete hardware and software...