February 11, 2000 DE 4

### NAME

de - DECchip 21040, 21140, 21141, 21142, and 21143 PCI Ethernet interface driver

### SYNOPSIS

de* at pci? dev ? function ?

Configuration of PHYs may also be necessary. See mii(4).

### DESCRIPTION

The de driver supports Ethernet and Fast Ethernet interfaces based on the Digital Equipment Corporation DECchip 21040, 21140, 21141, 21142, and 21143 model controllers for PCI bus.

21040
  10BASE-T and AUI/BNC
21140
  10BASE-T and 100BASE-TX
21141
  10BASE-T and 100BASE-TX
21142
  10BASE-T and 100BASE-TX
21143
  10BASE-T and 100BASE-TX

Supported Network Interface Cards (NIC) include, but are not limited to:

Accton EN1207i
Cogent EM100
Asante AsanteFAST
DEC DE435
DEC DE450
DEC DE500
SMC 9332
Znyx NetBlaster ZX340 series (345, 348, 346)

Generally, if the NIC is for PCI bus, and the major controller chip has the DIGITAL logo on it, with one of the model numbers above, the de driver should recognize and control it. Beware, however, that many NIC manufacturers change the Ethernet controller chip without changing the product model number, and a physical inspection of the NIC, or a probe of the NIC with a PCI diagnostic tool is the only way to tell if a real DEC TULIP controller is present.

Multi-port interfaces are typically configured as a PCI-PCI bridge with multiple de instances on the PCI bus on the other side of the bridge.

DEC sold its semiconductor division to Intel. In addition, there are many "knock-offs" of the DEC TULIP Ethernet controller chips; NICs based on these chips are handled by the tlp(4) driver.

This de driver should not be confused with the NetBSD VAX de driver for the DEC DEUNA/DELUA Ethernet controller for UniBus.

### SEE ALSO

ifmedia(4), intro(4), mii(4), pci(4), tlp(4), ifconfig(8)

```http://www.adaptec.com/`, ```http://www.asante.com/`, ```http://www.smc.com/`, ```http://www.znyx.com/`

### HISTORY

The de driver first appeared in NetBSD1.1

### AUTHORS

Matt Thomas <matt@3am-software.com>.