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CL(4) Device Drivers Manual (mvme88k) CL(4)

clCirrus Logic CD2401 serial controller

cl0 at pcctwo0 offset 0x45000 ipl 3
cl1 at pcctwo0 offset 0x45200 ipl 3 (M8120 only)

The cl driver provides support for the CD2401 serial controller found on MVME187, MVME197 and M8120 systems.

Each CD2401 controller supports four serial ports with a 16-character buffer.

The following link speeds are supported by the cl driver: 50, 110, 150, 300, 600, 1200, 2401, 3600, 4800, 7200, 9600, 19200, 38400, 56000 and 64000 bps, with an error margin smaller than 0.25% (except for 56000 bps, where the error margin is 0.80%).

/dev/tty[0-3]
 
/dev/tty[4-7] (M8120 only)
 

intro(4), tty(4)

May 18, 2013 OpenBSD-5.5