MB86290A Datasheet, PDF (136/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

TXS (Texture Size)
Register address ^{DrawBaseAddress + 464h}
Bit #
Bit field name
R/W
Default
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
TXSN
RW
100000000
TXSM
RW
100000000
This register controls the texture size (m, n).
Bits 8-0
TXSM (Texture Size M)
Set horizontal texture size. Any power of 2 between 4 and 256 can be used. Values that are not a
power of 2 cannot be used.
000000100
M=4
000001000
M=8
000010000
M=16
000100000
M=32
001000000
M=64
010000000
M=128
100000000
M=256
Others
Prohibited
Bits 24-16
TXSN (Texture Size N)
Set vertical texture size. Any power of 2 between 4 and 256 can be used. Values that are not a power
of 2 cannot be used.
000000100
N=4
000001000
N=8
000010000
N=16
000100000
N=32
001000000
N=64
010000000
N=128
100000000
N=256
Others
Prohibited
136