SH7785 Datasheet, PDF (987/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

19. Display Unit (DU)
Table 19.13 Variables Defined in Display Screen
Variables
Contents
Units
hc*¹
Horizontal scan period
Dot clock
hsw
Horizontal sync pulse width
Dot clock
xs
From rise of HSYNC to display start position in the Dot clock
horizontal direction of the display screen
xw
Display width per 1 raster of display screen
Dot clock
vc*²
Vertical scan period
Raster line
vsw
Vertical sync pulse width
Raster line
ys
From rise of VSYNC to display start position in the Raster line
vertical direction of the display screen
yw
Vertical display period of display screen
Raster line
Notes: 1. Should be set such that hsw + xs + xw < hc + 18 (decimal)
2. Should be set such that vsw + ys + yw < vc
The display timing generation register settings are different depending on the scan method and
synchronization method. Hence the value of the display timing generation register should be set
after performing calculations like those indicated in Table 19.14.
Rev.1.00 Jan. 10, 2008 Page 957 of 1658
REJ09B0261-0100