Features: • A single chip solution integrates 100/10 Base-T fast Ethernet MAC, PHY and PMD
• Fully comply to IEEE 802.3u specification
• Operates over 100 meters of STP and category 5 UTP cable
• Support full and half duplex operation in both 100 Base-TX and 10 Base-T mode
• Fully comply to PCI spec. 2.1 with bus clock ranges from 16MHz to 33MHz
• Fully comply to Advanced Configuration and Power Interface (ACPI) Rev 1.0
• Fully comply to PCI Bus Power Management Interface spec. Rev 1.0
• Magic Packet TM mode to support Remote-Power On and Remote-Wake-Up.
• 100/10 Base-T NWAY auto negotiation function
• Large on chip FIFOs for both transmit and receive operations without external local memory
• Bus master architecture with linked host buffers delivers the most optimized performance
• 32-bit bus master DMA channel provides ultra low CPU utilization
• Proprietary Adaptive Network Throughput Control (ANTC) technology to optimize data integrity and throughput
• Support up to 256K bytes boot ROM and FLASH interface
• Three levels of loopback diagnostic capability
• Support a variety of flexible address filtering modes with 16 CAM address and 512 bits hash
• MicroWire interface to EEPROM for customer's IDs and configuration data
• Single +5.0V power supply, standard CMOS technology, 160 pin PQFP packagePinout
Specifications
| Supply Voltage (VCC) |
-0.5V to +7.0V |
| DC Input Voltage (Vin) |
4.75V to 5.25V |
| DC Output Voltage (Vout) |
-0.5V to VCC +0.5V |
| Storage Temperature Range (Tstg) |
-55 to +150 |
| Operating Temperature Range |
0 to 70 |
| Power Dissipation (PD) |
750mW (Typ) |
| Lead Temp. (TL) (Soldering, 10 sec) |
260 |
ESD Rating (Rzap=1.5K, Czap=100pF)
|
1.0KV |
| Clamp Diode Current |
±20mA |
DescriptionThe MX98725, second generation of 100/10 Base-T single chip MAC controller, is designed specifically to meet future demand on Fast Ethernet networking system. Different from MX98715/715a3, MX98725 additionally supports ACPI, Remote-Wake-Up, Remote-Power- On, and up to 256K Bytes Flash interface to enhance The MX9725 controller is an IEEE802.3u compliant single chip 32-bit full duplex, 10/100Mbps highly integrated Fast Ethernet combo solution, designed to address high performance local area networking (LAN) system application requirements.
The bus master architecture delivers the performance needed for today high speed and powerful processors technology. In other words, the MX98725 not only keeps CPU utilization low while maximizing data throughput, but it also optimizes the PCI bandwidth providing the highest PCI bandwidth utilization. To further reduce ownership costs the MX98725 uses drivers that are backward-compatible with the original MXIC MX98713 series controllers.
The MX98725 contains a PCI local bus glueless interface, a Direct Memory Access (DMA) buffer management unit, an IEEE802.3u-compliant Media Access Controller (MAC), large Transmit and Receive FIFOs, and an on-chip 10 Base-T and 100 Base-TX transceiver simplifying system design and improving high speed signal quality. Full-duplex operation are supported in both 10 Base-T and 100 Base-TX modes that increases the controller's operating bandwidth up to 200Mbps.
Equipped with intelligent IEEE802.3u-compliant autonegotiation, the MX98725-based adapter allows a single RJ-45 connector to link with the other IEEE802.3u-compliant device completely without any need to set configuration.
In MX98725, an innovative and proprietary design "Adaptive Network Throughput Control" (ANTC) is builtin to configure itself automatically by MXIC's driver based on the PCI burst throughput of different PCs. With this proprietary design, MX98725 can always optimize its operating bandwidth, network data integrity and throughput for different PCs.
MXIC MX98725 features Remore-Wake-Up capability and is compliant with the Advanced Configuration and Power Interface (ACPI). This support enables a wide range of wake-up capabilities, including the ability to customize which network packets the PC responds to, even when it is in a low-power state. PCs and workstations designed to take advantage of these capabilities can be turned on remotely and serviced simultaneiously over the network from one central server, helping organizations reduce their total cost of ownership of high-performance business PCs. With its on-chip support for both little and big endian byte alignment, this controller can also address non-PC applications.
For diskless applications of networking, remotely booting up is a necessary process. To update or modify the code is such a complex process that network venders or owners must provide a new EPROM, replace the existing EPROM on the network adaptor and then reboot the computer. hanks to the development of Flash memory, MX98725 successfully incorporated Flash interface to provide remotely boot code update service and that means network maintenance becomes effortless.
MX98725 Data Sheet
