INTRO(4)              OpenBSD Programmer's Manual (Alpha)             INTRO(4)

NNAAMMEE
     iinnttrroo - introduction to special files and hardware support

DDEESSCCRRIIPPTTIIOONN
     The manual pages in section 4 describe the special files, related driver
     functions, and networking support available in the system.  In this part
     of the manual, the _S_Y_N_O_P_S_I_S section of each configurable device gives a
     sample specification for use in constructing a system description for the
     config(8) program.  The _D_I_A_G_N_O_S_T_I_C_S section lists messages which may ap-
     pear on the console and/or in the system error log _/_v_a_r_/_l_o_g_/_m_e_s_s_a_g_e_s due
     to errors in device operation; see syslogd(8) for more information.

     This section contains both devices which may be configured into the sys-
     tem and network related information.  The networking support is intro-
     duced in netintro(4).

DDEEVVIICCEE SSUUPPPPOORRTT
     This section describes the hardware supported on the Alpha platform.
     Software support for these devices comes in two forms.  A hardware device
     may be supported with a character or block _d_e_v_i_c_e _d_r_i_v_e_r, or it may be
     used within the networking subsystem and have a _n_e_t_w_o_r_k _i_n_t_e_r_f_a_c_e _d_r_i_v_e_r.
     Block and character devices are accessed through files in the file system
     of a special type; see mknod(8).  Network interfaces are indirectly ac-
     cessed through the interprocess communication facilities provided by the
     system; see socket(2).

     A hardware device is identified to the system at configuration time and
     the appropriate device or network interface driver is then compiled into
     the system.  When the resultant system is booted, the autoconfiguration
     facilities in the system probe for the device and, if found, enable the
     software support for it.  If a device does not respond at autoconfigura-
     tion time it is not accessible at any time afterwards.  To enable a de-
     vice which did not autoconfigure, the system will have to be rebooted.

     The autoconfiguration system is described in autoconf(4).  A list of the
     supported hardware and devices is given below.

SSUUPPPPOORRTTEEDD SSYYSSTTEEMMSS
     DEC and Compaq have produced a series of the Alpha CPU, some of which are
     listed below, along with some systems which contain them.

     "EV" stands for "Extended VAX" (or "Electro Vlassic") and the number fol-
     lowing is a reference to the CMOS process used to make the chips.  "LCA"
     stands for Low Cost Alpha, and "PCA" stands for PC-architecture Alpha.

     21064      EEVV44 (100-200 MHz, 0.75 micron)

                AlphaPC 64 (EB64)

                Avanti family
                      Digital's lower-end PCI-based workstations.

                      AlphaStation 200 4/100-166 (Mustang)
                      AlphaStation 400 4/166 (Chinet)

                Pelican family
                      Low-end TURBOchannel based workstations.

                      DEC 3000/300 (150 MHz) (Pelican)
                      DEC 3000/300X (175 MHz) (Pelican+)
                      DEC 3000/300L (100 MHz) (Pelica)
                      DEC 3000/300LX (125 MHz) (Pelica+)

                Sandpiper family
                      High-end TURBOchannel based workstations.

                      DEC 3000/400 (133 MHz) (Sandpiper)
                      DEC 3000/600 (175 MHz) (Sandpiper+)

                Flamingo family
                      High-end TURBOchannel based workstations.

                      DEC 3000/500 (150 MHz) (Flamingo)
                      DEC 3000/500X (200 MHz) (Hot Pink)
                      DEC 3000/800 (200 MHz) (Flamingo II)

     21064-A    EEVV4455 (225-333 MHz, 0.50 micron)

                DEC 3000/700 (225 MHz) (Sandpiper45)
                DEC 3000/900 (275 MHz) (Flamingo45)

                Avanti family
                      Digital's lower-end PCI-based workstations.

                      AlphaStation 200 4/233 (Mustang+)
                      AlphaStation 205 4/133-333 (LX3)
                      AlphaStation 250 4/300 (M3+)
                      AlphaStation 255 4/133-333 (LX3+)
                      AlphaStation 300 4/266 (Melmac)
                      AlphaStation 400 4/233-300 (Avanti)

     21066      LLCCAA44 (166-233 MHz, 0.75 micron)

                NoName family
                      Digital's lowest-end family of PCI-based systems.

                      DEC AXPpci33 (NoName)
                      Universal Desktop Box AXPpci166MT (UDB/Multia)

                21066 evaluation motherboard (EB66)

     21066-A    LLCCAA4455 (233 MHz, 0.50 micron)

                21066-A evaluation motherboard (EB66+)

     21068      LLCCAA44ss (66-233 MHz, 0.75 micron)

                Universal Desktop Box AXPpci233MT (UDB/Multia)

     21164      EEVV55 (250-366 MHz, 0.50 micron)

                Mikasa family
                      AlphaServer 1000 5/300 (Pinnacle)

                Noritake family
                      AlphaServer 1000A 5/300 (Pinnacle)

                      21164 evaluation motherboard (EB164)

     21164-A    EEVV5566 (400-766 MHz, 0.35 micron, BWX)

                Personal Workstation (PWS)
                      PWS 433a/433au (Miata)
                      PWS 500a/500au (Miata)
                      PWS 600a/600au (Miata)

                Mikasa family
                      AlphaServer 1000 5/333-500 (Primo)

                Noritake family
                      AlphaServer 1000A 5/333-500 (Primo)
                      AlphaServer 800 5/333-500 (Corelle)

                EB164 family
                      AlphaPC 164 motherboard (EB164)
                      AlphaPC 164LX motherboard (EB164)

                DigitalServer 3300 (rebadged AlphaServer 800 for NT)

     21164-PC   PPCCAA5566 (400-600 MHz, 0.35 micron, MVI, no L2 cache)

                AlphaPC 164SX motherboard (EB164)

                PWS 466au (Miata)
                PWS 550au (Miata)

     21264      EEVV66 (450-600 MHz, 0.35 micron)

                APi UP1000 and UP1100; AMD 751-based EV6 systems.

                264DP, XP1000, DS10, DS20 Tsunami-based systems.

     21264-A    EEVV6677 (600-833 MHz, 0.28 micron)

LLIISSTT OOFF DDEEVVIICCEESS
     A complete list of available devices is contained within the pages de-
     scribing the system buses and controllers.  For example, a PCI device
     would be listed in the pci(4) man page.  The following buses and con-
     trollers list these devices:

        eisa(4)       introduction to EISA bus support
        iic(4)        Inter IC (I2C) bus
        isa(4)        introduction to ISA bus support
        onewire(4)    1-Wire bus
        pci(4)        introduction to PCI bus support
        usb(4)        introduction to Universal Serial Bus support

SSEEEE AALLSSOO
     autoconf(4), config(8)

HHIISSTTOORRYY
     The Alpha iinnttrroo first appeared in OpenBSD 2.3.

OpenBSD 4.3                     October 9, 2007                              3
