TVRX(4)

NAME
tvrx - HP98705 TurboVRX “TigerShark” frame buffer

SYNOPSIS
tvrx* at dio?
wsdisplay* at tvrx?

DESCRIPTION
The TurboVRX frame buffer is an accelerated, high resolution (1280x1024) external display, connected to a 98702 DIO-II interface board. Models 98705A and 98705C are 8-bit color frame buffers, while model 98705B is 16-bit color with a 16-bit Z-buffer. All models also have four overlay planes.

The tvrx driver provides a frame buffer abstraction to the wscons(4) console framework.

Currently, the driver can only use one overlay plane, and will run as an unaccelerated monochrome frame buffer.

The TurboVRX cards can be configured using the 5 DIP switches selector on the interface board to define the “select code”. The select code value is computed by adding 133 to the number made from the five binary digits. The default settings, with the two MSB switches set to 1 and the three LSB switches set to 0, provide a select code of 157.

SEE ALSO
dio(4), intro(4), wscons(4), wsdisplay(4)