T-51750GD065J-FW-AB (AB) No. 2003-0198 OPTREX CORPORATION Page 13/20
8. Inverted Scan Capability
This module has the capability of inverting scan direction by signaling from controller.
Both horizontal and vertical scan direction can be selected independently. Note that scan direction
cannot be changed during operation.
The following figure shows the relation between the display position and the scan direction.
DISPLAY POSITION
Normal scan: REV = “L”
D( 1, 1) D( 2, 1) --- D( X, 1) --- D(639, 1) D(640, 1)
D( 1, 2) D( 2, 2) --- D( X, 2) --- D(639, 2) D(640, 2)
¦ ¦ +++¦ ¦
D( 1, Y) D( 2, Y) --- D( X, Y) --- D(639, Y) D(640, Y)
¦ ¦ +++¦ ¦
D( 1,479) D( 2,479) --- D( X,479) --- D(639,479) D(640,479)
D( 1,480) D( 2,480) --- D( X,480) --- D(639,480) D(640,480)
Reverse scan: REV = ”H”
D(640,480) D(639,480) --- D( X,480) --- D( 2,480) D( 1,480)
D(640,479) D(639,479) --- D( X,479) --- D( 2,479) D( 1,479)
¦ ¦ +++¦ ¦
D(640, Y) D(639, Y) --- D( X, Y) --- D( 2, Y) D( 1, Y)
¦ ¦ +++¦ ¦
D(640, 2) D(639, 2) --- D( X, 2) --- D( 2, 2) D( 1, 2)
D(640, 1) D(639, 1) --- D( X, 1) --- D( 2, 1) D( 1, 1)
The following drawing shows the relationship between the viewing direction and the scan direction.
Normal scan Reverse scan
D(1,1) D(640,1)
D(1,480) D(640,480)
D(1,1) D(640,1)
D(1,480) D(640,480)