topcat - HP98544 ``Topcat'', HP98550 ``Catseye'' and A1416A
``Kathmandu''
frame buffers
The HP98544, HP98545 and HP98547 ``Topcat'', as well as the
HP98548,
HP98549 and HP98550 ``Catseye'' and the A1416A ``Kathmandu''
are accelerated
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) driver,
and the associated ite(4) console framework.
The Topcat, Catseye and Kathmandu display cards are not user
configurable.
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.
ioctl(2), dvbox(4), gbox(4), grf(4), hyper(4), intro(4),
rbox(4)
OpenBSD 3.6 March 16, 2003
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