dmz man page on Ultrix

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dmz(4)									dmz(4)

Name
       dmz - DMZ32 communications interface

Syntax
       device dmz0 at uba? csr 0160500 flags 0x????
	    vector dmzrinta dmzxinta dmzrintb dmzxintb dmzrintc dmzxintc

Description
       The  device  provides 24 lines of asynchronous serial line support with
       full modem control on all lines.

       Each line attached to a DMZ32 serial line port behaves as described  in
       Input  and  output for each line can be set independently to run at any
       of 16 speeds.  See for the encoding.

       You can specify bit i of for a to say that a line is not properly  con‐
       nected  and that the line should be treated as hardwired, with the car‐
       rier always present.  For example, specifying ``flags 0x000004'' in the
       specification of dmz0 would cause line 2 to be treated in this way.

Diagnostics
       dmz%d: NXM line %d
       No  response  within  a	timeout	 period from UNIBUS on a DMA transfer.
       This is often followed by a UNIBUS adapter  error.   This  occurs  most
       frequently  when the UNIBUS is heavily loaded and when devices, such as
       RK07s, which monopolize the bus, are present.  It is not serious.

       dmz%d: silo overflow
       The character input silo overflowed before it could be serviced.	  This
       can happen if a hard error occurs when the CPU is running with elevated
       priority, as the system then prints  a  message	on  the	 console  with
       interrupts disabled.

Files
       (modem lines only)

See Also
       tty(4), MAKEDEV(8)

				      VAX				dmz(4)
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