RAiO
RA8875
文字/图½
TFT LCD
控制器
规格书
Version 1.7
March 07, 2014
RAiO Technology Inc.
©Copyright
RAiO Technology Inc. 2011, 2012, 2013, 2014
RAiO TECHNOLOGY INC.
1/191
www.raio.com.tw
RA8875
Version 1.7
文字
/
图½
TFT LCD
控制器
改
版 本
日 期
August 01, 2011
October 04, 2011
1.0
November 18, 2011
说
版
明
说
明
Preliminary Version
1. Modify Figure 7-80、Figure 7-81
1. Modify Section 7-4-2
2. Modify Table 8-2
1. Add Figure 7-82
2. Modify Figure 6-41
1. Modify Section 7-6 BTE Function
(Parallel MCU interface only)
1. Add Appendix A
1. Modify REG[21h]
1. Modify Section 4-8 : pin description of OSC_VDD
2. Modify Section 6-1-2 : Serial I/F Protocol
3. Add Note of REG[94h], REG[98h], Figure 7-29, Figure 7-30
1. Modify Section 5-2 : the Bit1 of REG[01h]
2. Modify Table 7-8
1. Modify Section 4-1 : pin description of PS
2. Modify Section 5-2 : REG[01h]
、REG[16h]
3. Add Section 6-1-2-3 :SPI Sleep/Wake Up
1. Modify Section 6-1-2-1 : 3-Wire SPI Interface
2. Modify Section 6-1-2-2 : 4-Wire SPI Interface
1. Modify Figure 6-12、Figure 6-18
1. Modify Section 6-8 : Example of formula for system clock
1. Modify Section 5-2 : REG[15h]
1. Modify Figure 6-37~Figure 6-40、Figure 6-48
1. Modify Section 7-2-4 and Section 5-5 : REG[41h]
November 29, 2011
1.1
January 10, 2012
February 09, 2012
February 22, 2012
1.2
March 16, 2012
May 15, 2012
1.3
March 27, 2013
1.4
May 3, 2013
June 18, 2013
1.5
July 17, 2013
July 31, 2013
1.6
1.7
December 03, 2013
March 07, 2014
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RA8875
Version 1.7
文字
/
图½
TFT LCD
控制器
Chapter
Contents
Page
1.
简介
............................................................................................................ 7
2.
特性
............................................................................................................ 7
3.
方块图.........................................................................................................
8
3-1
3-2
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15
5-16
6-1
内部方块图
........................................................................................................... 8
系统方块图
........................................................................................................... 8
MCU
界面
............................................................................................................. 9
串行式MCU界面
................................................................................................. 10
LCD面板界面...................................................................................................... 11
串行式Flash/ROM 接口......................................................................................
11
触控界面
............................................................................................................. 12
键盘接口
............................................................................................................. 12
脉½调制界面......................................................................................................
12
频率与电源界面
.................................................................................................. 13
状态寄存器
......................................................................................................... 15
系统与组态寄存器...............................................................................................
16
LCD
显示模式.....................................................................................................
21
工½窗口及卷动窗口设定
.................................................................................... 27
光标设定
............................................................................................................. 30
BTE
引擎
............................................................................................................ 34
触控面板
............................................................................................................. 41
图½光标
............................................................................................................. 43
PLL设定 ............................................................................................................. 44
脉波½度调变
(PWM).......................................................................................... 46
绘图控制寄存器
.................................................................................................. 49
直接内存存取
(DMA)
寄存器...............................................................................
55
键盘扫描与
IO控制寄存器................................................................................... 58
浮动窗口控制寄存器
........................................................................................... 60
串行式Flash控制寄存器
..................................................................................... 62
中断控制
............................................................................................................. 63
MCU
界面
........................................................................................................... 66
6-1-1 MCU传输协议 ........................................................................................................................67
6-1-1-1
并列式接口的传输协议................................................................................................67
4.
脚½定义
..................................................................................................... 9
5.
寄存器.......................................................................................................
14
6.
硬件接口
................................................................................................... 66
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RA8875
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文字
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TFT LCD
控制器
6-1-2
串行式接口的协议..................................................................................................................70
6-1-2-1 3-Wire SPI
界面
..........................................................................................................70
6-1-2-2 4-Wire SPI
界面
..........................................................................................................73
6-1-2-3 SPI
睡眠
/
喚醒............................................................................................................77
6-1-2-4 IIC
界面
.......................................................................................................................78
6-1-3
状态读取寄存器
.....................................................................................................................80
6-1-4
指令写入寄存器
.....................................................................................................................81
6-1-5
内存读取/写入的操½
.............................................................................................................82
6-1-6
中断与等待.............................................................................................................................83
6-1-6-1
中断.............................................................................................................................83
6-1-6-2
等待.............................................................................................................................84
6-1-7
数据总线与TFT的RGB数据格式............................................................................................85
6-1-7-1 16
½数据总线
.............................................................................................................85
6-1-7-2 8
½数据总线
...............................................................................................................85
6-2
6-3
6-4
驱动接口的色½设定模式
.................................................................................... 86
LCD
界面............................................................................................................
87
外部串行式Flash/ROM.......................................................................................
89
6-4-1
外部串行式字½内存
..............................................................................................................92
6-4-2
外部串行式数据存储器
..........................................................................................................93
6-5
6-6
6-7
6-8
6-9
6-10
触控界面
............................................................................................................. 94
键盘扫描功½......................................................................................................
96
脉½调变界面......................................................................................................
96
频率
(Clock)
与
PLL........................................................................................... 97
复½功½
............................................................................................................. 99
电源
.................................................................................................................. 101
6-10-1
电源脚½说明
.......................................................................................................................101
6-10-2
电源结构
..............................................................................................................................101
7.
功½描述
................................................................................................. 102
7-1
卷动功½
........................................................................................................... 102
7-1-1
卷动窗口与卷动偏移值
........................................................................................................102
7-1-2
水平卷动与垂直卷动
............................................................................................................102
7-1-3
图层混合卷动
.......................................................................................................................103
7-1-3-1
图层
1
与图层
2
同时卷动..........................................................................................104
7-1-3-2
只卷动图层
1 .............................................................................................................104
7-1-3-3
只卷动图层
2 .............................................................................................................105
7-1-3-4
缓冲卷动
...................................................................................................................106
7-2
工½窗口
........................................................................................................... 107
7-2-1
7-2-2
7-2-3
7-2-4
工½窗口的文字写入
............................................................................................................107
工½窗口的几½图½显示.....................................................................................................108
工½窗口中的DMA功½显示
................................................................................................108
工½窗口的内存写入
............................................................................................................108
7-3
光标与图½显示
................................................................................................ 109
7-3-1
游标种类
..............................................................................................................................109
7-3-1-1
图½光标
...................................................................................................................109
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文字
/
图½
TFT LCD
控制器
7-3-1-2
内存读取光标
............................................................................................................111
7-3-1-3
内存写入光标
............................................................................................................111
7-3-1-4
文字写入光标
............................................................................................................112
7-3-2
光标属性
..............................................................................................................................112
7-3-2-1
游标闪烁
...................................................................................................................112
7-3-2-2
游标的高度与½度
.....................................................................................................113
7-3-3
图½显示
..............................................................................................................................115
7-4
文字
.................................................................................................................. 116
7-4-1
7-4-2
7-4-3
7-4-4
7-4-5
7-4-6
7-4-7
内部文字内存
.......................................................................................................................116
外部
Font ROM ...................................................................................................................121
CGRAM (Character Generation RAM
自建字库功½)
......................................................122
文字
90
度½向.....................................................................................................................124
文字放大与通透功½
............................................................................................................124
文字换行
..............................................................................................................................125
文字全型对½
.......................................................................................................................125
圆½输入
..............................................................................................................................126
椭圆输入
..............................................................................................................................127
曲线输入
..............................................................................................................................128
方½输入
..............................................................................................................................129
直线输入
..............................................................................................................................130
三角½输入...........................................................................................................................131
圆角方½输入
.......................................................................................................................132
7-5
几½图案绘图引擎.............................................................................................
126
7-5-1
7-5-2
7-5-3
7-5-4
7-5-5
7-5-6
7-5-7
7-6
BTE
引擎功½
(仅支援并列式MCU接口)........................................................... 133
7-6-1
选择BTE起始点½½及图层
.................................................................................................136
7-6-2 BTE
操½说明
......................................................................................................................136
7-6-2-1 BTE写入....................................................................................................................136
7-6-2-2 BTE读取....................................................................................................................136
7-6-2-3 BTE移动....................................................................................................................136
7-6-2-4
单色填满
...................................................................................................................136
7-6-2-5
图案填满
...................................................................................................................136
7-6-2-6 BTE通透填满 ............................................................................................................136
7-6-2-7 BTE通透写入 ............................................................................................................137
7-6-2-8 BTE通透移动 ............................................................................................................137
7-6-2-9
颜色扩充
...................................................................................................................137
7-6-2-10
颜色移动
...................................................................................................................137
7-6-3 BTE内存存取方式................................................................................................................138
7-6-3-1
区块内存读取
............................................................................................................138
7-6-3-2
线性内存读取
............................................................................................................138
7-6-4 BTE
功½说明
......................................................................................................................139
7-6-4-1 BTE写入搭配光栅运算功½.......................................................................................139
7-6-4-2 BTE读取功½ ............................................................................................................141
7-6-4-3 BTE正向移动搭配光栅运算功½ ...............................................................................142
7-6-4-4 BTE反向移动搭配光栅运算功½ ...............................................................................144
7-6-4-5 BTE通透性写入功½..................................................................................................146
7-6-4-6 BTE正向通透性移动功½ ..........................................................................................148
7-6-4-7
图½显示填入搭配光栅运算功½
...............................................................................149
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