july 16, 1999 一般 释放 规格
MC68HC05J5A MOTOROLA
rev 2.1 i
表格 的 内容
部分 页
部分 1
一般 描述
1.1 特性...................................................................................................... 1-1
1.2 掩饰 选项.............................................................................................. 1-2
1.3 mcu 结构.......................................................................................... 1-2
1.4 管脚 assignments........................................................................................ 1-4
1.5 函数的 管脚 描述.................................................................. 1-4
1.5.1 V
DD
和 v
SS
.............................................................................................. 1-4
1.5.2 osc1, osc2/r............................................................................................ 1-4
1.5.3 重置
......................................................................................................... 1-6
1.5.4 IRQ
(maskable 中断 要求)................................................ 1-6
1.5.5 pa0-pa7 ...................................................................................................... 1-6
1.5.6 pb0-pb5 ...................................................................................................... 1-7
部分 2
记忆
2.1 i/o 和 控制 寄存器 ................................................................... 2-2
2.2 内存 ................................................................................................................. 2-2
2.3 只读存储器................................................................................................................. 2-2
2.4 i/o 寄存器 summary ........................................................................... 2-3
部分 3
central 处理 单位
3.1 寄存器 .................................................................................................... 3-1
3.2 accumulator (一个)........................................................................................ 3-2
3.3 index 寄存器 (x)..................................................................................... 3-2
3.4 堆栈 pointer (sp).................................................................................... 3-2
3.5 程序 计数器 (pc) ........................................................................... 3-2
3.6 情况 代号 寄存器 (ccr) ........................................................... 3-3
3.6.1 half carry 位 (h-位) .................................................................................... 3-3
3.6.2 中断 掩饰 (i-位) .................................................................................... 3-3
3.6.3 负的 位 (n-位) ...................................................................................... 3-3
3.6.4 零 位 (z-位) ............................................................................................. 3-3
3.6.5 carry/borrow 位 (c-位) ............................................................................... 3-4
部分 4
中断
4.1 cpu 中断 处理 ................................................................... 4-1
4.2 重置 中断 sequence .................................................................. 4-2
4.3 软件 中断 (swi) ..................................................................... 4-3
4.4 硬件 中断 ............................................................................ 4-3
4.5 外部 中断 (irq)....................................................................... 4-3
4.5.1 irq 控制/状态 寄存器 (icsr) $0a...................................... 4-5
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