DP83820 10/100/1000 Mb/s PCI Ethernet Network Interface Controller is a single-chip 10/100/1000 Mb/s Ethernet controller for the PCI bus from National Semiconductor Corporation. It is targeted at high-performance adapter cards and mother boards. The DP83820 fully implements the V2.2 66 MHz, 64-bit PCI bus interface for host communications with power management support. Packet descriptors and data are transferred via bus-mastering, reducing the burden on the host CPU. The DP83820 can support full duplex 10/100/1000 Mb/s transmission and reception.
The DP83820 is a single-chip 10/100/1000 Mb/s Ethernet Controller designed for the PCI bus, targeting high-performance adapter cards and motherboards. It fully implements the V2.2 66 MHz, 64-bit PCI bus interface with power management support and reduces host burden via bus-mastering for packet descriptor and data transfers.
| Data Rates | 1 Mb/s to 1000 Mb/s |
|---|---|
| PCI Bus Interface | 66 MHz, 64-bit |
| Package Type | 208-pin PQFP |
| Power Supply | 3.3V |
| Transmit FIFO | 8 KB |
| Receive FIFO | 32 KB |
The controller supports full duplex transmission and reception at 10, 100, and 1000 Mb/s.
The device supports burst sizes of up to 256 dwords, which equals 1024 bytes.
The controller includes an internal 8 KB Transmit FIFO and a 32 KB Receive FIFO.