1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)kg.4 8.1 (Berkeley) 06/05/93 7.\" 8.Dd 9.Dt KG 4 vax 10.Os BSD 4.2 11.Sh NAME 12.Nm kg 13.Nd 14.Tn KL-11 Ns / Tn DL-11W 15line clock 16.Sh SYNOPSIS 17.Cd "device kg0 at uba0 csr 0176500 vector kglock" 18.Sh DESCRIPTION 19A 20.Tn KL-11 21or 22.Tn DL-11W 23can be used as an alternate real 24time clock 25source. When configured, certain system 26statistics and, optionally, system profiling work 27will be collected each time the clock interrupts. For 28optimum accuracy in profiling, the 29.Tn DL-11W 30should be 31configured to interrupt at the highest possible priority 32level. The 33.Nm kg 34device driver automatically calibrates itself to the 35line clock frequency. 36.Sh SEE ALSO 37.Xr kgmon 8 , 38.Xr config 8 39.Sh HISTORY 40The 41.Nm 42driver appeared in 43.Bx 4.2 . 44