- Low power consumption 3.3V, 0.18 micron CMOS technology
- 低功耗
- 3.3V MAC interface
- Automatic MDIX 10/100 Mb/s
- Energy detection mode
- Flexible MII port assignment
- Dynamic Integrity Tool
- Dynamic link quality monitoring
- TDR-based cable diagnostics and cable length detection
- Latency-optimized, real-time Ethernet operation
- Reference clock output
- RMII Priest 1.2 Interface (Configurable)
- SNI interface (configurable)
- Serial MII Management Interfaces (MDC and MDIO)
- IEEE 802.3 MII
- IEEE 802.3 Auto-Negotiation and Parallel Detection
- IEEE 802.3 ENDEC, 10BASE-T Transceivers and Filters
- IEEE 802.3 PCS, 100BASE-TX transceivers and filters
- IEEE 1149.1 JTAG
- Integrated ANSI X3.263 Standard TP - Adaptive Equalization and Baseline Drift Compensation for PMD Physical Sublayers
- Programmable LED loop, 10/100 MB/S mode, active, supports double-sided and collision detection
- Full PHY status register access ticket
- 10/100 Mb/s packet BIST (built-in self-test)
- 80-Pin TQFP Package (12 mm× 12 mm)
illustrate
As for the number of applications requiring Ethernet connectivity, it continues to grow. This increases the demand in the market as the application requirements change. Single-channel Ethernet is sufficient for use such as wireless base stations and long-range networking, and many applications now require redundancy or system-managed dual-port capabilities.
The DP83849I is a highly reliable, feature-rich device that is fully enabled for industrial applications with Ethernet on the factory floor. The DP83849I features two fully independent 10/100 multi-port application ports. The National's unique port switching capability also allows two ports to be configured to provide fully integrated distance extension, media switching, hardware-based failover, and port monitoring.
The DP83849I provides optimal flexibility in the selection of MPUs that support both MII and RMII interfaces. Attached to the device includes a powerful new diagnostic tool to ensure initial network operation and maintenance.
In addition to TDR programs, the detection of common faults during installation is used, and National Semiconductor's innovative cable diagnostics provide real-time continuous monitoring of link quality. This allows system designers to implement fault prediction mechanisms to detect and warn of changes or deterioration of link conditions.
With the DP83849IVS, National Semiconductor continues to build on its Ethernet expertise and leadership, providing a combination of powerful capabilities and flexibility to ease Ethernet system design implementations.
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- Medical devices
- Factory automation
- Motor and motion control
- Wireless remote control base station
- General embedded applications
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