- Low power 3.3V, 0.18 micron CMOS technology
- Low power consumption
- 3.3V MAC interface
- Automatic MDIX 10/100 Mb/s
- Energy detection mode
- Flexible MII port assignment
- Dynamic integrity tools
- Dynamic link quality monitoring
- TDR-based cable diagnostics and cable length detection
- Latency-optimized real-time Ethernet operation
- Reference clock output
- RMII Pastor 1.2 interface (configurable)
- SNI interface (configurable)
- Serial MII management interface (MDC and MDIO)
- IEEE 802.3 MII
- IEEE 802.3 Autonegotiation 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, support for double-sided and collision detection
- Full PHY status register access sheet
- 10/100 Mb/s packet BIST (built-in self-test)
- 80-pin TQFP package (12mm×12mm)
illustrate
As for the number of applications requiring Ethernet connectivity, the number is constantly expanding. As this increases the market demand is a change in application demand. Where single-channel Ethernet use is sufficient, many applications such as wireless base stations and remote networks now require redundancy or system management dual-port capabilities.
The DP83849I is a highly reliable, feature-rich device fully enabled for industrial applications on the factory floor over Ethernet. The DP83849I has two fully independent 10/100 multi-port application ports. National's unique port switching capability also allows two ports to be configured to provide fully integrated distance extension, media conversion, hardware-based failover, and port monitoring.
The DP83849I provides optimal flexibility in selecting MPUs that support both MII and RMII interfaces. The attached device includes a powerful new diagnostic tool to ensure initial network operation and maintenance.
In addition to the TDR program, which is used for the detection of common faults during installation, National Semiconductor's innovative cable diagnostics provide real-time continuous monitoring of link quality. This enables system designers to implement failure prediction mechanisms to detect and warn of changes or deterioration in link conditions.
With the DP83849IVS, National Semiconductor Corporation continues to build on its Ethernet expertise and leadership to provide a powerful combination of features and flexibility to ease Ethernet system design implementations.
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- Medical devices
- Factory automation
- Motor & Motion Control
- Wireless remote control base station
- General embedded applications
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