spif man page on OpenBSD

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SPIF(4)		     OpenBSD Programmer's Manual (SPARC64)	       SPIF(4)

     spif - SBus (spiffy) Serial/Parallel Interface

     spif* at sbus?
     stty* at spif?
     sbpp* at spif?

     The spif driver provides support for the Sun Serial/Parallel Interface
     card (Sun part number 501-1931) based around the Cirrus Logic CD180 octal
     serial controller and the Cirrus Logic PPC2 parallel port controller.

     The device minor numbers for this driver are encoded as follows:

	 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
	   |   |   |   |   |   |   |   |
	   |   |   |   |   |   +---+---+---> port number
	   |   |   |   |   |
	   |   |   |   |   +---------------> unused
	   |   |   |   |
	   |   |   |   +-------------------> dial-out (on tty ports)
	   |   |   |
	   |   |   +-----------------------> unused
	   |   |
	   +---+---------------------------> card number

     Up to four cards are supported in the system.

     Each of the serial ports has an 8 byte FIFO for receive and transmit as
     well as automatic hardware (RTS/CTS) flow control.

     /dev/tty[jkl][0-7]	 Serial ports
     /dev/sbpp[0-3]	 Parallel ports

     spif%d: ccr timeout  A timeout occurred while writing to one of the CD180

     stty%d-%d: ring overflow  Incoming characters were discarded because the
     application in control of the device did not read the input fast enough.

     intro(4), sbus(4), tty(4)

     The spif driver was first supported in OpenBSD 3.1.

     The driver was written by Jason Wright <jason@thought.net>, and is
     heavily based on the magma(4) driver written by Iain Hibbert

     The parallel port is not supported yet.

     Dial-out (cua) devices are not yet supported.

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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