MB86293 Datasheet, PDF (223/285 Pages) Fujitsu Component Limited. – Grraphiics Conttrrollllerr Speciiffiicattiions

FUJITSU LIMITED
PRELIMINARY and CONFIDENTIAL
10.2.7 Line drawing registers
Each register is used by the drawing commands. The registers cannot be accessed from the CPU or by
using the SetRegister command.
(Coordinates setting register)
Register Address 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
LPN 0140H 0 0 0 0
Int
LXs 0144H S S S S
Int
LXde 0148H S S S S S S S S S S S S S S S Int
0
Frac
Frac
LYs 014cH S S S S
Int
Frac
LYde 0150H S S S S S S S S S S S S S S S Int
LZs 0154H S
Int
Frac
Frac
LZde 0158H S
Int
Frac
Address
S
0
Int
Frac
Offset from DrawBaseAddress
Sign bit or sign extension
Not used or 0 extension
Integer or integer part of fixed point data
Fraction part of fixed point data
Sets coordinates parameters for line drawing
LPN
LXs
LXde
LYs
LYde
LZs
LZde
Pixel count of principal a xis direction
X coordinates start position of draw line
(In principal axis X) Integer value of X coordinates rounded off
(In principal axis Y) X coordinates in form of fixed point data
Inclination data for X coordinates
(In principal axis X) Increment or decrement according to drawing direction
(In principal axis Y) Fraction part of DX/DY
Y coordinates start position of draw line
(In principal axis X) Y coordinate s in form of fixed point data
(In principal axis Y) Integer value of Y coordinates rounded off
Inclination data for Y coordinates
(In principal axis X) Fraction part of DY/DX
(In principal axis Y) Increment or decrement according to drawing direction
Z coordinates start position of line drawing line
Z Inclination
MB86293 CORAL_LQ
Graphics Controller
223
Specifications Rev. 1.1