MCA(4) | Device Drivers Manual | MCA(4)

# NAME

`mca` —
introduction to machine-independent MCA bus support and drivers

# SYNOPSIS

`mca0 at mainbus?`

`options MCAVERBOSE`

Machine-dependent; depends on the bus topology and MCA bus interface of your system. Typical MCA buses are connected directly to the main system bus.

# DESCRIPTION

NetBSD includes a machine-independent MCA bus subsystem and several machine-independent MCA device drivers.

# HARDWARE

NetBSD includes machine-independent MCA drivers, sorted by device type and driver name:

## SCSI controllers

aha(4)
  Adaptec AHA-1640 SCSI interface
esp(4)
  NCR 53C90 SCSI Adapter

## Disk and tape controllers

edc(4)
  IBM ESDI Fixed Disk Controller

## Serial interfaces

com(4)
  NS8250-, NS16450-, and NS16550-based serial cards.

## Network interfaces

ate(4)
  Allied-Telesis 1720 Ethernet interface cards
we(4)
  WD/SMC WD80x3x Ethernet interface cards and clones
le(4)
  SKNET Personal and MC+ Ethernet interface cards
elmc(4)
  3Com EtherLink/MC (3c523) Ethernet interface
ep(4)
  3Com EtherLink III 3c529 Ethernet interface
tra(4)
  Tiara LANCard/E and Standard MicroSystems 3016/MC Ethernet interface

# SEE ALSO

intro(4), mca(9)

# HISTORY

The machine-independent MCA subsystem appeared in NetBSD 1.5.

February 26, 2021 | NetBSD 10.0