IA186XL/IA188XL
16位微控制器
数据表
2011年7月6日
目录
图列表..................................................................................................................................5
表一览...................................................................................................................................6
1.
Introduction.............................................................................................................................7
1.1一般Description.......................................................................................................7
1.2产品特点.........................................................................................................................7
2.
封装，引脚描述和物理尺寸.......................................... ............... 9
2.1封装与引脚....................................................................................................9
2.1.1 IA186XL 68 PLCC封装........................................... ............................... 10
2.1.2 IA188XL 68 PLCC封装........................................... ............................... 12
2.1.3 PLCC物理尺寸............................................ ................................ 14
2.1.4 IA186XL 80 PQFP封装........................................... ................................ 15
2.1.5 IA188XL 80 PQFP封装........................................... ................................ 17
2.1.6 PQFP物理尺寸............................................ ................................ 19
2.1.7 IA186XL 80 LQFP封装........................................... ................................ 20
2.1.8 IA188XL 80 LQFP封装........................................... ................................ 22
2.1.9 LQFP物理尺寸............................................ ................................ 24
2.2 IA186XL引脚/信号说明............................................ .................................. 25
2.3 IA188XL引脚/信号说明............................................ .................................. 31
3.
最大额定值，热特性，以及DC参数....................................... 37
4.
实用Description..........................................................................................................39
4.1设备Architecture.....................................................................................................39
4.1.1总线接口单元............................................ ............................................... 39
4.1.2时钟发生器............................................. ................................................. 42
4.1.3中断控制单元............................................ ......................................... 42
4.1.4定时器/计数器单元........................................... ............................................. 42
4.1.5片选/就绪生成逻辑........................................ ..................... 43
4.1.6 DMA ...............................................................................................................44
4.1.7 DRAM刷新控制单元........................................... ............................... 44
4.1.8节电控制........................................... ............................................. 44
4.2操作模式.........................................................................................................45
4.2.1增强模式............................................. ................................................. 45
4.2.2队列状态模式............................................ ............................................. 45
4.2.3 ONCE模式...................................................................................................45
4.2.4数学协处理器（ IA186XL只） ......................................... ...................... 45
表12.内部寄存器映射............................................ .............................................. 46
5.
AC规格.................................................................................................................47
5.1主要周期时序 - 读周期........................................... ................................. 47
5.2主要周期时序 - 写周期........................................... ................................ 49
5.3主要周期时序 - 中断确认周期.......................................... ..... 51
5.4软件暂停周期时序............................................. ......................................... 53
5.5时钟计时.............................................................................................................55
5.6就绪，外围和队列状态时序.......................................... ................... 56
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