ra8806 RAIO Technology Inc., ra8806 Datasheet - Page 82

• Manufacturer Part Number: ra8806
• Description: Two Layers Character/graphic Lcd Controller
• Manufacturer: RAIO Technology Inc.

Preliminary Version 1.2
RAiO
TECHNOLOGY INC.
6-10-4 Font Vertical Display
RA8806 features of its “Font Vertical Display” function. This function enables the normal display
change to vertical display. This means the original 320x240 panel can be used as a 240x320 panel
to display embedded character font or data in vertical way, and no need to change scan direction or
the LCD driver layout. The LCD panel could display from both vertical and horizontal ways. This
function is option on setting the Bit-3 of register WCCR. When WCCR Bit-3 =1 (Font Rotation Mode),
the font character will be written in vertical display. Figure 6-51 shows the example of font vertical
display.
Under the vertical display mode, the cursor moves from the direction of up to down. And the cursor
display is also differing to normal display mode. (Please refer to Section 6-13-4 “Cursor Width and
Height” for detail descriptions).
Due to the advance rotate function, if user chose a 240x160 module, then it will be very easy to use
same module but as an 160x240 module. The following Figure 6-52 shows the example of 320x240
panel rotate to as 240X320 application. In normal mode, if write text font “RAIO” then the screen
show as (1) of Figure 6-52. If set the T90DEG(Bit-3 of REG[10h]) = 1 and CDIR(Bit-0 of REG[01h])
= 1 first, then write text font “RAIO”, the screen will show as (2) of Figure 6-52.
COM239
COM0
SEG0
RAiO
15
0
(1) 320x240 for Normal use
0
Normal Display
Figure 6-51: Font Vertical Display Function
Figure 6-52 : Font Display in Rotate Mode
SEG319
7
82/184
0
7
Two Layers Character/Graphic LCD Controller
0
SEG319
COM239
SEG0
Vertical Display
(2) As a 240x320 Application
RAiO
T90DEG = 1 , CDIR = 1
15
COM0
www.raio.com.tw
RA8806