11/2/95
部分
半导体公司
飞思卡尔
1 :概述
UM牧师1
目录(续)
段
数
2.15
2.15.1
2.15.2
2.15.3
2.15.4
2.16
2.17
2.18
标题
页面
数
试验Signals.......................................................................................................2-13
测试时钟( TCK ) ............................................. .............................................. 2-13
测试模式选择( TMS ) ............................................ .................................. 2-13
测试数据输入( TDI ) ............................................ .............................................. 2-13
测试数据输出( TDO ) ............................................ ......................................... 2-13
合成器电源(V
CCSYN
)..........................................................................2-13
系统电源和接地(V
CC
和GND) ............................................... .2-13
信号Summary...............................................................................................2-13
第3节
总线操作
飞思卡尔半导体公司...
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.1.6
3.1.7
3.1.7.1
3.1.7.2
3.1.7.3
3.2
3.2.1
3.2.2
3.2.3
3.2.3.1
3.2.3.2
3.2.3.3
3.2.3.4
3.2.3.5
3.2.3.6
3.2.3.7
3.2.4
3.2.5
3.2.6
3.3
3.3.1
3.3.2
3.3.3
摩托罗拉
总线传输信号............................................... ......................................... 3-1
...............................................总线控制信号...................................... 3-2
功能代码信号............................................... ................................. 3-3
地址总线( A31 - A0 ) ........................................... ..................................... 3-4
地址选通( AS ) ............................................. ....................................... 3-4
数据总线( D15 - D0 ) ........................................... ........................................... 3-4
数据选通( DS ) ............................................. .............................................. 3-4
总线周期终止信号.............................................. .................... 3-4
数据传输和大小应答信号
( DSACK1和
DSACK0).....................................................................3-4
总线错误( BERR ) ............................................. .......................................... 3-5
自动向量化( AVEC ) .............................................. ...................................... 3-5
数据传输机制............................................... ................................ 3-5
动态总线宽度............................................... ...................................... 3-5
不对齐的操作数................................................ ................................... 3-7
操作分动箱............................................... .............................. 3-7
字节操作数为8位端口,奇或偶( A0 = X) .............................. 3-7
字节操作数为16位端口,即使( A0 = 0 ) .................................... 3-8 ......
字节操作数为16位端口,奇( A0 = 1 ) .................................... 3-9 .......
字操作数为8位端口,对齐......................................... ............ 3-9
字操作数为16位端口,对齐......................................... .......... 3-10
长字操作数为8位端口,对齐....................................... 3-10 ....
长字操作数为16位端口,对齐....................................... .3-12
公共汽车Operation................................................................................................3-14
同步操作与
DSACK≈.....................................................3-14
快速终止循环............................................... ............................... 3-15
数据传输周期............................................... ......................................... 3-16
读Cycle.....................................................................................................3-16
写Cycle.....................................................................................................3-18
读 - 修改 - 写周期............................................ ................................. 3-19
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