NAME

vioc − VIOC-X communications multiplexer

SYNOPSIS

device vx0 at vba0 csr 0xfe4000

DESCRIPTION

A VIOC-X provides 16 communication lines with partial modem control, adequate for UNIX dialup use.  Each line attached to the VIOC-X communications multiplexer behaves as described in tty(7) and may be set to run at any of 16 speeds; see tty(7) for the encoding. 

Each VIOC-X controller uses 3 entries in the SCB for command terminated, acknowledge, and unsolicited (input) interrupts.  These entries start at 0x40 for the 1st controller, 0x44 for the 2nd, etc. 

FILES

/dev/tty[0-9][0-9a-f]

SEE ALSO

tty(7)

CX/UX Administrator’s Reference