目录

第4章

控制寄存器

（续）

概观.............................................................................................................................................4-1

第5章

中断结构

概观.............................................................................................................................................5-1

中断类型............................................................................................................................5-2

S3C8275 / C8278 / C8274的中断结构........................................... .......................................... 5-3

中断向量地址...........................................................................................................5-4

启用/禁用中断指令（ EI ， DI ） ........................................ .......................................... 5-6

系统级中断控制寄存器............................................ ........................................... 5-6

中断处理控制点.............................................. ................................................. 5 -7

外设中断控制寄存器.............................................. .............................................. 5-8

系统模式寄存器（ SYM ） ......................................................................................................5-9

中断屏蔽寄存器（ IMR ） .......................................................................................................5-10

中断优先级寄存器（ IPR） .....................................................................................................5-11

中断请求寄存器（ IRQ ） ...................................................................................................5-13

中断挂起功能类型..................................................................................................5-14

中断源查询序列.............................................. .................................................. 5-15

中断服务Routines.............................................................................................................5-15

发生中断向量地址.............................................. ............................................ 5-16

嵌套向量的Interrupts.......................................................................................................5-16

指令指针（ IP ） .................................................................................................................5-16

快速中断处理.............................................................................................................5-16

第6章

指令集

概观.............................................................................................................................................6-1

数据类型.................................................................................................................................6-1

寄存器寻址....................................................................................................................6-1

地址Modes.......................................................................................................................6-1

标志注册(FLAGS)...............................................................................................................6-6

标志说明........................................................................................................................6-7

指令集Notation................................................................................................................6-8

条件代码..........................................................................................................................6-12

指令Descriptions................................................................................................................6-13

vi

S3C8275 / F8275 / C8278 / F8278 / C8274 / F8274微控制器