GT21L16S2W用户手册V35(3)

介绍高通汉字库芯片的操作时序,官方版本

目 录

第一部分：硬件部分

1 概述.......................................................................................................................................................................4

1.1 芯片特点..........................................................................................................................................................................................4 1.2 芯片内容..........................................................................................................................................................................................4

2 引脚描述与接口连接...........................................................................................................................................6

2.1 引脚配置..........................................................................................................................................................................................6 2.2 引脚描述..........................................................................................................................................................................................6 2.3 HOST CPU主机SPI接口电路示意图............................................................................................................................................7

3 操作指令...............................................................................................................................................................8

3.1 指令参数..........................................................................................................................................................................................8 3.2 Read Data Bytes（一般读取）.........................................................................................................................................................8 3.3 Read Data Bytes at Higher Speed（快速读取点阵数据）..............................................................................................................9

4 电气特性.............................................................................................................................................................10

4.1 绝对最大额定值............................................................................................................................................................................10 4.2 DC特性..........................................................................................................................................................................................10 4.3 AC特性...........................................................................................................................................................................................10

5 封装尺寸.............................................................................................................................................................12

第二部分：软件部分

6 字库调用方法.....................................................................................................................................................13

6.1 汉字点阵排列格式........................................................................................................................................................................13 6.2 汉字点阵字库地址表....................................................................................................................................................................17 6.3 字符在芯片中的地址计算方法....................................................................................................................................................18 6.4 Unicode到GB2312内码转换程序...............................................................................................................................................20 6.5 GB2312到Unicode内码转换程序...............................................................................................................................................22

7 附录.....................................................................................................................................................................24

7.1 GB2312 1区 (376字符)................................................................................................................................................................24 7.2 8×16点国标扩展字符（126字符）.............................................................................................................................................25