MB86294 Datasheet, PDF (224/305 Pages) Fujitsu Component Limited. – Grraphiics Controller specifications

FUJITSU LIMITED
PRELIMINARY and CONFIDENTIAL
MDR3 (Mode Register for Texture)
Register
address
DrawBaseAddress + 42CH
Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit field name
BA
TAB
TBL
TWS TWT
TF TC
R/W
RW
RW
RW
RW RW
RW RW
Initial value
0
00
00
00 00
00
This register sets the texture mapping mode.
Bit 3
TC (Texture coordinates Correct)
Sets texture coordinates correction mode
0 Disabled
1 Enabled
Bit 5
TF (Texture Filtering)
Sets type of texture interpolation (filtering)
0 Point sampling
1 Bi-linear filtering
Bit 9 and 8
TWT (Texture Wrap T)
Sets type of texture coordinates T direction wrapping
00 Repeat
01 Cramp
10 Border
11 Reserved
Bit 11 and 10
TWS (Texture Wrap S)
Sets type of texture coordinates S direction wrapping
00 Repeat
01 Cramp
10 Border
11 Reserved
Bit 17 and 16
TBL (Texture Blend mode)
Sets texture blending mode
00 De-curl
01 Modulate
10 Stencil
11 Reserved
Bit 21 and 20
TAB (Texture Alpha Blend mode)
Sets texture blending mode
The stencil mode and the stencil alpha mode are enabled only when the MDR2
register blend mode (BM) is set to the alpha blending mode. If it is not set to the
alpha blending mode, the stencil mode and stencil alpha mode perform the same
function as the normal mode.
MB86294/294S CORAL_LB
Graphics Controller
224
Specifications Rev. 1.0