TOPCAT(4)             OpenBSD Programmer's Manual (HP300)            TOPCAT(4)

NAME
     topcat - HP98544 ``Topcat'', HP98550 ``Catseye'' and A1416A ``Kathmandu''
     frame buffers

DESCRIPTION
     The HP98544, HP98545 and HP98547 ``Topcat'', as well as the HP98548,
     HP98549 and HP98550 ``Catseye'' and the A1416A ``Kathmandu'' are acceler-
     ated frame buffers, with the following resolution and color depth:
           98544   1024x768 monochrome ``Topcat''
           98545   1024x768 4-bit color ``Topcat''
           98547   1024x768 6-bit color ``Topcat''
           98548   1024x768 6-bit color ``Catseye''
           98549   1280x1024 monochrome ``Catseye''
           98550   1280x1024 8-bit color ``Catseye''
           A1416A  1280x1024 8-bit color ``Kathmandu''

     The topcat driver provides a frame buffer abstraction to the grf(4) driv-
     er, and the associated ite(4) console framework.

     The Topcat, Catseye and Kathmandu display cards are not user config-
     urable.  If one is present on a system, it will always have a frame
     buffer address of 0x200000 and a control register address of 0x560000.
     These are the HP series 300 ITE (Internal Terminal Emulator) defaults.
     The device can also be used as a graphics output device.

SEE ALSO
     ioctl(2), dvbox(4), gbox(4), grf(4), hyper(4), intro(4), rbox(4)

OpenBSD 3.5                     March 16, 2003                               1
