ade3800 STMicroelectronics, ade3800 Datasheet - Page 64

• Manufacturer Part Number: ade3800
• Description: Analog Lcd Display Engine For Xga And Sxga Resolutions With Embedded Lvds And Rsds Transmitters
• Manufacturer: STMicroelectronics

4.11.5 TCON Window Control
Note:
64/138
Register Description by Block
PGEN_ENAB
PGEN_X_TOT_L
PGEN_X_TOT_U
The borders override the graphic pattern. In addition, the left and right edges override the top and
bottom ones: for example, when both left and top side borders are enabled, the upper left corner
has the color of the left side border.
Example:
PGEN_ENAB = 01 enables PGEN
PGEN_X_TOT_L = 00, PGEN_X_TOT_H = 05 considering that the panel is 1280 pixels wide
PGEN_Y_TOT_L = 00, PGEN_Y_TOT_H = 04 considering that the panel is 1024 pixels high
PGEN_B_TOP_BOT = EE adds a yellow horizontal borderline to top and bottom of display area
PGEN_B_LFT_RHT = 9A adds a blue vertical borderline to the left and a green one to the right
Normally, the whole PGEN block is enabled if its global enable bit PGEN_ENAB[0] is set.
If it is not set but the bit PGEN_ENAB[1] is set instead, the programmed pattern will show only
inside a rectangular window defined by the associated TCON signal TCON_X_PGEN. Outside this
window, the input video stream will be displayed as generated by the scaler.
If the global enable bit PGEN_ENAB[0] is set, it has priority over PGEN_ENAB[1].
Register Name
Colour
White
Table 25: Pattern Generator Registers (Sheet 1 of 3)
PGEN pattern
displayed here
0600
0601
0602
Addr
Red
Table 24: Borders Colors
1
TCON window
R/W
R/W
R/W
R/W
Mode
Green
1
[1]
[0]
[7:0]
[3:0]
Bits
Blue
00
00
00
Rst
1
Window control via TCON signal
0*: disable, use global enable bit 0 below
1: enable PGEN by TCON_X_PGEN
Global PGEN enable bit
0*: disable
1: enable
(this bit overrides bit 1 above)
screen total horizontal size in pixels
Value
7
everywhere
displayed
Description
signal
video
input
else
ADE3800