CLOCK(4) (mvme68k)

CLOCK(4) | Device Drivers Manual (mvme68k) | CLOCK(4)

# NAME

`clock` —
Clock driver for Motorola MVME68K Single Board Computers

# SYNOPSIS

`clock0 at pcc? ipl 5`
`clock0 at pcctwo? ipl 5`

# DESCRIPTION

The `clock` driver uses the counter/timer facilities of the MVME147's `pcc` driver or the MVME167/MVME177's `pcctwo` driver to provide two independent hardware clocks for use by the NetBSD kernel.

Both clock interrupts are set to 100Hz, with one used to provide the master kernel stats clock tick. The other is used for profiling purposes.

# SEE ALSO

mvme68k/intro(4), mvme68k/pcc(4), mvme68k/pcctwo(4)

February 17, 2017 | NetBSD 9.5