| SPIF(4) | Device Drivers Manual | SPIF(4) | 
spif —
spif* at sbus? slot ? offset ?  (sun4c/sun4m/sun4u)
stty* at spif?  (sun4c/sun4m/sun4u)
sbpp* at spif?  (sun4c/sun4m/sun4u)
spif driver provides support for the Sun
  Serial/Parallel Interface card (Sun part number 501-1931), which is based on
  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.
spif adapter was first supported in
  OpenBSD 2.5. The driver was ported to
  NetBSD 3.0.
Dial-out (cua) devices are not yet supported.
| February 4, 1999 | NetBSD 9.4 |