目录
段
数
标题
页面
数
1.1
1.2
1.3
1.4
1.5
第1节
概述
框图................................................ ......................................... 1-1
功能................................................. ................................................. 1 -3
MC68302系统架构............................................... ................ 1-4
NMSI面向通讯的环境....................................... 1-5
基本速率ISDN或数字话音/数据终端.................................... 1-6
第2节
MC68000 / MC68008 CORE
编程模型................................................ ................................ 2-1
指令集摘要............................................... .......................... 2-3
地址空间................................................ ...................................... 2-6
异常处理................................................ .............................. 2-8
异常向量................................................ ................................... 2-8
除了堆叠顺序............................................... ........................ 2-9
中断处理................................................ .............................. 2-11
M68000信号差............................................... .................... 2-11
MC68302 IMP配置控制.............................................. ...... 2-12
MC68302存储器映射............................................... .......................... 2-14
事件寄存器................................................ ..................................... 2-19
第3节
系统集成块(SIB )
DMA控制................................................ ............................................ 3-2
主要特点................................................ ........................................... 3-2
IDMA寄存器(独立的DMA控制器) ...................................... 3-3
通道模式寄存器( CMR ) ............................................ ................... 3-4
源地址指针寄存器( SAPR ) ........................................... 3-6 ....
目标地址指针寄存器( DAPR ) ........................................ 3-6
功能代码寄存器( FCR ) ............................................ .................... 3-7
字节计数寄存器( BCR ) ............................................ ......................... 3-7
通道状态寄存器( CSR) ............................................ .................. 3-7
接口信号................................................ ..................................... 3-8
DREQ和DACK ............................................... ..................................... 3-8
DONE...................................................................................................... 3-8
IDMA操作说明............................................... .................. 3-9
通道初始化................................................ ............................... 3-9
数据传输................................................ .......................................... 3-9
2.1
2.2
2.3
2.4
2.4.1
2.4.2
2.5
2.6
2.7
2.8
2.9
3.1
3.1.1
3.1.2
3.1.2.1
3.1.2.2
3.1.2.3
3.1.2.4
3.1.2.5
3.1.2.6
3.1.3
3.1.3.1
3.1.3.2
3.1.4
3.1.4.1
3.1.4.2
摩托罗拉
MC68302用户手册
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