RA8875
Version 1.0
Character / Graphic TFT LCD Controller
1 Description
RA8875 is a text/graphic mixed display with 2 layers TFT LCD controller. It is designed to meet the
requirement of middle size TFT module up to 800x480 pixels with characters or 2D graphic application.
Embedded 768KB display RAM provides user a flexible solution for displaying buffer of almost application.
Besides, optional external serial flash is capable to provide the up to 32x32pixels font bitmap for BIG5/GB
coding. For graphic usage, RA8875 supports a 2D Block Transfer Engine(BTE) that is compatible with 2D
BitBLT function for processing the mass data transfer. The advanced geometric speed-up engine provides
user an easy way to draw the programmable geometric shape by hardware, like line, square, circle and ellipse.
Besides, for different end-user applications, many powerful functions are integrated with RA8875, such as
scroll function, floating window display, graphic pattern and font enlargement function. These functions will
save user a large of software effort during development period.
RA8875 is a powerful and cheap choice for color display application. To reduce the system cost, RA8875
provides low cost and easy-to-use 8080/6800 parallel MCU interface. Because of the powerful hardware
speed-up function embedded in it, less data transfer is needed so more efficiency is improved, RA8875 also
provides serial SPI/I2C I/F with ultra-low pin-count. Useful device controller, such as flexible 4-wire touch panel
controller, PWM for adjusting panel back-light are also included to reduce the system cost for customer. With
the RA8875 design-in, user can achieve an easy-to-use, low-cost and high performance system comparing
with the other solution.
2 Feature
Support Text/Graphic Mixed Display Mode.
Embedded 768KB DDRAM.
Color Depth TFT: 256/4K/65K Colors.
Supporting TFT 8/12/16 bpp Generic RGB
Interface.
Supporting TFT Panel Size:
800x480 Pixels 2 Layers @ 256 Colors.
800x480 Pixels 1 Layer @ 64K Colors.
480x272 Pixels 2 Layers @ 64K Colors.
Supporting MPU Interface :
8080/6800 with 8/16 Data Bus Width
I2C or 3/4-Wires SPI I/F.
Powerful Block Scrolling Function for Vertical or
Horizontal Direction.
Embedded 10KB Character ROM with Font
Size 8x16 Dots and Supporting Character Set of
ISO/IEC 8859-1/2/3/4.
External Serial Flash/ROM SPI I/F Supporting.
Supporting Genitop UNICODE/BIG5/GB Serial
font ROM with 16X16/24x24/32X32 dots Font
Size.
Font Enlargement Function X1, X2, X3, X4 for
Horizontal/Vertical Direction.
Font Vertical Rotation Mode Function.
Block Transfer Engine (BTE) Supports with 2D
Function, Compatible with 2D BitBLT Function.
Embedded Geometric Speed-up Engine.
Programmable Text Cursor for Writing with
Character.
32*32 Pixel Graphic Cursor Function.
User-defined Characters.
256 Characters with 8*16 dots.
Supporting 32 User-defined Patterns of 8*8
pixels, or 16 User-defined Pattern for 16*16
pixels.
Two Programmable PWM for Back-Light
Adjusting or other's Application.
Embedded 4-wire Touch Panel Controller.
Sleep Mode with Low Power Consumption.
Embedded Smart 4*5 Key-Scan Controller.
4 Sets of Programmable GPO and a fixed
GPOX.
5 Sets of Programmable GPI and a fixed GPIX
Clock Source: Embedded Crystal Oscillator
Circuit with Programmable PLL.
Operation Voltage: 3.0V~3.6V.
Package: LQFP-100pin.
RAiO
TECHNOLOGY INC.
2/9
www.raio.com.tw
RAIO [ RAIO TECHNOLOGY INC. ]
