Field Name Bits Default Description VPORT_X_SCALE_ENA 0 0x0 Viewport Transform Scale Enable for X component VPORT_X_OFFSET_ENA 1 0x0 Viewport Transform Offset Enable for X component VPORT_Y_SCALE_ENA 2 0x0 Viewport Transform Scale Enable for Y component VPORT_Y_OFFSET_ENA 3 0x0 Viewport Transform Offset Enable for Y component VPORT_Z_SCALE_ENA 4 0x0 Viewport Transform Scale Enable for Z component VPORT_Z_OFFSET_ENA 5 0x0 Viewport Transform Offset Enable for Z component VTX_XY_FMT 8 0x0 Indicates that the incoming X, Y have already been multiplied by 1/W0. If OFF, the Setup Engine will bultiply the X, Y coordinates by 1/W0., VTX_Z_FMT 9 0x0 Indicates that the incoming Z has already been multiplied by 1/W0. If OFF, the Setup Engine will multiply the Z coordinate by 1/W0. VTX_W0_FMT 10 0x0 Indicates that the incoming W0 is not 1/W0. If ON, the Setup Engine will perform the reciprocal to get 1/W0. SERIAL_PROC_ENA 11 0x0 If set, x,y,z viewport transform are performed serially through a single pipeline instead of in parallel. Used to mimic RL300 design.