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.Dd February 26, 2021 .Dt MCA 4 .Os .Sh NAME .Nm mca .Nd introduction to machine-independent MCA bus support and drivers .Sh SYNOPSIS .Cd "mca0 at mainbus?"
p .Cd options MCAVERBOSE
p
Machine-dependent; depends on the bus topology and
.Tn MCA
bus interface of your system. Typical
.Tn MCA
buses are connected directly to the main system bus.
.Sh DESCRIPTION
.Nx
includes a machine-independent
.Tn MCA
bus subsystem and several machine-independent
.Tn MCA
device drivers.
.Sh HARDWARE
.Nx
includes machine-independent
.Tn MCA
drivers, sorted by device type and driver name:
.Ss SCSI controllers
l -tag -width speaker -offset indent t Xr aha 4 Adaptec AHA-1640
.Tn SCSI
interface
t Xr esp 4 NCR 53C90
.Tn SCSI
Adapter
.El
.Ss Disk and tape controllers
l -tag -width speaker -offset indent t Xr edc 4 IBM ESDI Fixed Disk Controller
.El
.Ss Serial interfaces
l -tag -width speaker -offset indent t Xr com 4 NS8250-, NS16450-, and NS16550-based serial cards.
.El
.Ss Network interfaces
l -tag -width speaker -offset indent t Xr ate 4 Allied-Telesis 1720 Ethernet interface cards
t Xr we 4 WD/SMC WD80x3x Ethernet interface cards and clones
t Xr le 4 SKNET Personal and MC+ Ethernet interface cards
t Xr elmc 4 3Com EtherLink/MC (3c523) Ethernet interface
t Xr ep 4 3Com EtherLink III 3c529 Ethernet interface
t Xr tra 4 Tiara LANCard/E and Standard MicroSystems 3016/MC Ethernet interface
.El
.Sh SEE ALSO
.Xr intro 4 ,
.Xr mca 9
.Sh HISTORY
The machine-independent
.Tn MCA
subsystem appeared in
.Nx 1.5 .
Indexes created Sat Sep 20 22:09:52 GMT 2025