表格 的 内容
Paragraph 标题 页
号码 号码
vi
mc68302 用户’s 手工的
MOTOROLA
3.1.4.3 地址 sequencing..............................................................................3-10
3.1.4.4 转移 要求 一代 ................................................................3-11
3.1.4.5 块 转移 末端....................................................................3-12
3.1.5 idma 程序编制 ...............................................................................3-13
3.1.6 dma 总线 arbitration ..............................................................................3-14
3.1.7 总线 exceptions ......................................................................................3-14
3.1.7.1 重置......................................................................................................3-15
3.1.7.2 总线 错误................................................................................................3-15
3.1.7.3 halt.........................................................................................................3-15
3.1.7.4 relinquish 和 retry..............................................................................3-15
3.2 中断 控制 .................................................................................3-15
3.2.1 Overview ................................................................................................3-16
3.2.1.1 imp 中断 处理 overview .......................................................3-16
3.2.1.2 中断 控制 overview .................................................................3-17
3.2.2 中断 priorities...................................................................................3-18
3.2.2.1 inrq 和 exrq priority 水平 ............................................................3-18
3.2.2.2 inrq 中断 源 priorities ............................................................3-19
3.2.2.3 nested 中断 ...................................................................................3-19
3.2.3 masking 中断 来源 和 events ..................................................3-20
3.2.4 中断 vector ......................................................................................3-21
3.2.5 中断 控制 程序编制 模型................................................3-24
3.2.5.1 global 中断 模式 寄存器 (gimr) .................................................3-24
3.2.5.2 中断 pending 寄存器 (ipr)............................................................3-26
3.2.5.3 中断 掩饰 寄存器 (imr)................................................................3-27
3.2.5.4 中断 在-维护 寄存器 (isr).........................................................3-28
3.2.6 中断 handler examples ...................................................................3-28
3.3 并行的 i/o 端口....................................................................................3-29
3.3.1 端口 一个 .....................................................................................................3-29
3.3.2 端口 b .....................................................................................................3-31
3.3.2.1 PB7–PB0 ...............................................................................................3-31
3.3.2.2 PB11–PB8 .............................................................................................3-32
3.3.3 i/o 端口 寄存器 ..................................................................................3-32
3.4 双-端口 内存.......................................................................................3-33
3.5 计时器 ....................................................................................................3-35
3.5.1 计时器 关键 特性 ...............................................................................3-36
3.5.2 一般 目的 计时器 单位 ................................................................3-37
3.5.2.1 计时器 模式 寄存器 (tmr1, tmr2) ....................................................3-37
3.5.2.2 计时器 涉及 寄存器 (trr1, trr2)............................................3-38
3.5.2.3 计时器 俘获 寄存器 (tcr1, tcr2)................................................3-39
3.5.2.4 计时器 计数器 (tcn1, tcn2)................................................................3-39
3.5.2.5 计时器 事件 寄存器 (ter1, ter2)....................................................3-39
3.5.2.6 一般 目的 计时器 例子...........................................................3-40
3.5.2.6.1 计时器 例子 1....................................................................................3-40
3.5.2.6.2 计时器 例子 2....................................................................................3-40
3.5.3 计时器 3 - 软件 看门狗 计时器 ......................................................3-41
: 点此下载
