March 3, 2005 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
  Adaptec AHA-1640 SCSI interface

esp
  NCR 53C90 SCSI Adapter

#### Disk and tape controllers

edc
  IBM ESDI Fixed Disk Controller

#### Serial interfaces

com
  NS8250-, NS16450-, and NS16550-based serial cards.

#### Network interfaces

tr
  TROPIC based token ring interfaces

ate
  Allied-Telesis 1720 Ethernet interface cards

we
  WD/SMC WD80x3x Ethernet interface cards and clones

le
  SKNET Personal and MC+ Ethernet interface cards

elmc
  3Com EtherLink/MC (3c523) Ethernet interface

ep
  3Com EtherLink III 3c529 Ethernet interface

tra
  Tiara LANCard/E and Standard MicroSystems 3016/MC Ethernet interface

### SEE ALSO

aha(4), ate(4), com(4), edc(4), elmc(4), ep(4), esp(4), le(4), ne(4), tr(4), tra(4), we(4)

### HISTORY

The machine-independent MCA subsystem appeared in NetBSD1.5.