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Introduction

This is the Hardware Functional Specification for the RA8889 TFT LCD Controller. RA8889 supports CMOS type interface. This document provides system block diagrams, Pin information, AC/DC characteristics, functional description of each block, detail register descriptions, and power mode control.

RA8889 is a low power TFT controller with powerful display functions and build-in internal SDRAM memory. In order to quickly refresh the screen content with the display memory, RA8889 provides not only parallel, 8080/6800 8/16-bit MCU interface, but also 3/4 wire SPI and IIC serial interface. Plenty powerful functions are provides from RA8889, such as multiple display buffers, Picture-in-Picture, transparency control, display with rotation & mirror, and build-in JPEG and AVI decoder.


Figure 1-1 : System Diagram
Features

Frame Buffer
- Build-in 128Mb SDRAM
- SDRAM configuration: x16
- 16-bit SDRAM bus, maximum frame buffer: 256MB/512MB

Supports images sizes : 1366 x 768

Mono / 256 / 65K / 16.7M colors

CMOS TTL

High Speed 3/4, IIC Serial MCU I/F

Embedded 12x24 Character Sets of ISO/IEC 8859-1/2/4/5.

Supports Ext. Font Code IC

Provide 4 User-defined 32x32 pixels Graphic Cursor

DMA Function

Supports Alpha-Blend, PIP, BTE

Geometric Drawing Engine

Related product Specification
Functions RA8889 RA8871M | RA8873M RA8876/76M | RA8877 RA8875
Product Guide RA8889 : PDF RA8871M : PDF RA8876 : PDF RA8875 : PDF
    RA8873M : PDF RA8877 : PDF  
Resolution(Max) 1366 x 768 RA8871M : 320 x 240 / 480 x 272
RA8873M : 800 x 480
1366 x 768 800 x 480
Colors(Max) 16.7M RA8871M : 256 / 4K / 65K / 16.7M
RA8873M : 256 / 65K
Mono / 256 / 65K / 16.7M256 / 65K
Panel Type CMOS / TTL CMOS / TTL RA8876 : CMOS / TTL
RA8877 : LVDS
CMOS / TTL
Parallel MPU Interface 8/16-Bits 8/16-Bits 8/16-Bits8/16-Bits
Serial MCU I/F SPI 3 | 4 / IIC SPI 3 | 4 / IIC SPI 3 | 4 / IICSPI 3 | 4 / IIC
Master I/F SPI / IIC SPI / IIC SPI / IIC--
Embedded Display RAM 128Mbits SDRAM RA8876M (64Mbits)768KB
External SDRAM -- -- Up to 512Mbits(RA8876/RA8877)--
Embedded ASCII Font ISO-8859
Latin 1, 2, 4, 5
ISO-8859
Latin 1, 2, 4, 5
ISO-8859
Latin 1, 2, 4, 5
ISO-8859
Latin 1~4
External Font ROM I/F   Serial Serial SerialSerial
Media Decoder V -- -- --
Touch Panel Controller -- -- --4-Wires
Block Transfer Engine V V VV
Geometric Speed-up Engine V V V V
Virtual Display Multi Buffer Display Multi Buffer Display Multi Buffer Display--
Picture-in-Picture V V V --
Dual Pages Mode V V V V
Horizontal Scroll V V V V
Vertical Scroll V V V V
Graphic/Font Rotation V V V V
Programmable Text Cursor V V V V
Support Graphic Cursor V V V V
User-defined Characters V V V V
Alpha-Blending V V V --
DMA V V V V
PWM O/P V 2 2 2
Smart Key-Scan V 5x5 5x5 4x5
GPIO V Max 40 Max 40 9
Clock Source X'tal + PLL X'tal + PLL X'tal + PLL X'tal + PLL
Operation Voltage 3.0 ~ 3.6V 3.0 ~ 3.6V 3.0 ~ 3.6V 3.0 ~ 3.6V
Package LQFP-100 LQFP-128 LQFP-128 LQFP-100
Operation Temperature -40 ~ +85℃ -40 ~ +85℃ -40 ~ +85℃-30 ~ +85℃
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