CLOCKPORT(4) Device Drivers Manual (amiga) CLOCKPORT(4)

clockport
introduction to clockport bus support and drivers

clockport* at a1k2cp0
clockport* at gencp?

Clockport is a general purpose non-autoconfiguring expansion bus, originally present on the Amiga 1200, as a part of P9 memory connector.

The NetBSD includes the following clockport drivers:
com(4)
Individual Computers SilverSurfer 16C550-based serial port.

The clockport interface and drivers for it are implemented within the sys/arch/amiga/clockport directory.

amiga/a1k2cp(4)

The clockport subsystem appeared in NetBSD 7.0.

The clockport subsystem was written by Radoslaw Kujawa <radoslaw.kujawa@gmail.com>.

Clockport performance is very low, even by Amiga standards.

Probing the hardware on clockport might be unreliable.

February 17, 2017 NetBSD 9.4