>  There is full documentation on the PixelVision architecture available. 

PixelVision is the successor of TURBOchannel PX/PXG product line, and
is called PV.  From DU/Tru64 conf description;

{   "PMAGC   ",     "pv",     0,      1,    'C',    0},     /* Low PV */
{   "PMAGC-AA",     "pv",     0,      1,    'C',    0},     /* Low PV */
{   "PMAGC-BA",     "pv",     0,      1,    'C',    0},     /* Mid PV */
{   "PMAGC-DA",     "pvl",    0,      1,    'C',    0},     /* Low PVlite */
{   "PMAGC-EA",     "pvl",    0,      1,    'C',    0},     /* Mid PVlite */

SFB (available as PMAGB) design concept is described in WRL TR, and
its technical/programming aspect is fully documented in the product
document of TGA.

Tohru Nishimura