UNIXBP(4)           NetBSD/acorn26 Kernel Interfaces Manual          UNIXBP(4)

NAME
     unixbp -- Unix Backplane driver

SYNOPSIS
     unixbp0 at ioc0 bank 6

DESCRIPTION
     The unixbp driver controls the interrupt-masking hardware on the expan-
     sion-card backplane of certain systems.  This hardware gives NetBSD the
     ability to selectively block interrupts from particular expansion cards,
     and to determine which cards are currently generating interrupts by exam-
     ining a single register.

SEE ALSO
     podulebus(4)

NetBSD 5.0_STABLE              December 9, 2000              NetBSD 5.0_STABLE
