DP83849IFVS

• Low-power 3.3V, 0.18 micron CMOS technology
• 低功耗
• 3.3V MAC interface
• Auto - MDIX 10/100 Mb/s
• Energy detection mode
• Flexible MII port assignment
• Dynamic integrity utility
• Dynamic link quality monitoring
• TDR-based cable diagnostics and cable length detection
• Real-time Ethernet operation optimizes latency
• Reference clock output
• RMII's Priest 1.2 Interface (Configurable)
• SNI interface (configurable)
• Ministry of Information Industry Serial Management Interface (MDC and MDIO)
• IEEE 802.3 MII
• Compliant with IEEE 802.3u auto-negotiation and parallel detection
• IEEE 802.3u ENDEC, 10BASE-T transceiver and filter compliant
• IEEE 802.3u PCS, 100BASE-TX transceivers and filters compliant
• IEEE 802.3u 100Base - FX fiber interface compliant
• IEEE 1149.1 JTAG
• Compliant with comprehensive ANSI X3.263 TP - Adaptive equalization and baseline drift compensation for the PMD physical sublayer
• Programmable LEDs support loop, 10/100 MB/s mode, active, duplex and collision detection
• Single completion of PHY status register access
• 10/100 Mb/s packet BIST (built-in self-test)
• 80-Pin TQFP Package (12mm × 12mm)

illustrate

The number of applications requiring Ethernet connectivity is expanding. This is a changing application requirement with the growing market demand. Single-channel Ethernet is used in many applications that now require sufficient for wireless remote control base stations and dual-port capabilities for industrial network redundancy or system management.

DP83849IF is a highly reliable, feature-rich device that is ideal for industrial applications that enable Ethernet on the factory floor. DP83849IF has two completely independent 10/100 ports for multiport applications. The Nation's unique port switching feature also allows two ports to be configured to provide fully integrated distance extension, media switching, hardware-based failover, and port monitoring.

DP83849IF choice of MPUs that support both MII and RMII interfaces provides optimal flexibility. The device also offers the flexibility to support both copper and fiber media. Additionally, the unit includes a powerful new diagnostic tool to ensure initial network operation and maintenance.

In addition to the Taiwan Depositary Receipt Program, which is commonly used for fault detection during installation, National Semiconductor's innovative cable diagnostics provide real-time, continuous monitoring of link quality. This allows system designers to implement failure prediction mechanisms to detect and warn of changes or deterioration in link conditions.

As DP83849IF, National Semiconductor continues to provide a combination of powerful features and flexibility that alleviate the foundation of Ethernet expertise and leadership for Ethernet implementation system designers.

apply

• Medical devices
• Factory automation
• Motor and motion control
• Wireless remote base station
• Universal embedded applications