GT21L16S2Y 标准汉字字库芯片用户手册

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