UM10470
NXP Semiconductors
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修订版 1.5 — 2011 年 7 月 6 日
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UM10470
用户手册
第 40 章:补充信息
12.3 简介 ...................................................................................................................................................... 255
12.4 特性 ...................................................................................................................................................... 256
12.4.1 可编程参数 ............................................................................................................................................ 256
12.4.2 硬件光标支持 ......................................................................................................................................... 257
12.4.3 支持的 LCD 面板类型 ............................................................................................................................ 257
12.4.4 TFT 面板 ................................................................................................................................................ 257
12.4.5 彩色 STN 面板 ....................................................................................................................................... 258
12.4.6 单色 STN 面板 ....................................................................................................................................... 258
12.5 管脚描述 ............................................................................................................................................... 258
12.5.1 信号使用 ................................................................................................................................................ 259
12.5.1.1 单面板 STN 显示器使用的信号 ............................................................................................................ 259
12.5.1.2 双面板 STN 显示器使用的信号 ............................................................................................................ 259
12.5.1.3 TFT 显示器使用的信号 ......................................................................................................................... 260
12.6 LCD 控制器功能描述 ........................................................................................................................... 260
12.6.1 AHB 接口 ............................................................................................................................................... 262
12.6.1.1 AMBA AHB 从接口 ............................................................................................................................... 262
12.6.1.2 AMBA AHB 主接口 ............................................................................................................................... 262
12.6.2 双 DMA FIFO 与相关控制逻辑 .............................................................................................................. 263
12.6.3 像素串行器 ............................................................................................................................................ 263
12.6.4 RAM 调色板 ........................................................................................................................................... 267
12.6.5 硬件光标 ................................................................................................................................................ 269
12.6.5.1 光标的操作 ........................................................................................................................................... 269
12.6.5.2 光标尺寸 ............................................................................................................................................... 269
12.6.5.3 光标的移动 ........................................................................................................................................... 269
12.6.5.4 光标的 XY 定位 .................................................................................................................................... 270
12.6.5.5 光标的剪裁 ........................................................................................................................................... 270
12.6.5.6 光标图像格式........................................................................................................................................ 271
12.6.6 灰度计 ................................................................................................................................................... 274
12.6.7 上、下面板格式器 ................................................................................................................................. 275
12.6.8 面板时钟发生器 ..................................................................................................................................... 275
12.6.9 时序控制器 ............................................................................................................................................. 275
12.6.10 STN 与 TFT 的数据选择 ........................................................................................................................ 275
12.6.10.1 STN 显示器 .......................................................................................................................................... 275
12.6.10.2 TFT 显示器 ........................................................................................................................................... 275
12.6.11 中断产生 ................................................................................................................................................ 276
12.6.11.1 主机总线错误中断 ................................................................................................................................ 276
12.6.11.2 垂直比较中断 .......................................................................................................................................... 276
12.6.11.2.1 下一个基址更新中断 ......................................................................................................................... 276
12.6.11.2.2 FIFO 下溢中断 .................................................................................................................................. 276
12.6.12 LCD 上电与掉电顺序 ............................................................................................................................. 277
12.7 寄存器描述 ........................................................................................................................................... 279
12.7.1 LCD 配置寄存器(LCD_CFG,RW—0x400F C1B8) ......................................................................... 280
12.7.2 水平时序寄存器(LCD_TIMH,RW — 0x2008 8000)........................................................................ 280
12.7.2.1 水平时序限制........................................................................................................................................ 280
12.7.3 垂直时序寄存器(LCD_TIMV,RW — 0x2008 8004) ........................................................................ 281
12.7.4 时钟与信号极性寄存器(LCD_POL,RW — 0x2008 8008) .............................................................. 282
12.7.5 线端控制寄存器(LCD_LE,RW — 0x2008 800C) ........................................................................... 283