目录
部分
页面
1
1.1
1.2
1.3
介绍
1
产品特点...................................................................................................................................... 1
订购信息................................................................................................................... 2
MC68HC912B32框图............................................... ..................................................五
6
编程模型.................................................................................................................... 6
数据类型.................................................................................................................................. 7
寻址模式.......................................................................................................................7
变址寻址模式......................................................................................................... 8
操作码和操作数.............................................................................................................. 8
引脚排列和信号说明
9
MC68HC912B32引脚分配............................................... .............................................. 9
电源引脚.................................................................................................................... 10
信号说明.................................................................................................................... 11
端口信号............................................................................................................................... 15
口上拉，下拉，并减少驱动器....................................... ...................................... 19
寄存器块
20
操作模式和资源映射
25
操作模式.......................................................................................................................25
背景调试模式.......................................................................................................... 26
内部资源映射....................................................................................................... 28
存储器映射............................................................................................................................ 31
总线控制和输入/输出
32
检测来自外部信号接入类型............................................ .............................. 32
注册................................................................................................................................... 32
闪存EEPROM
37
概观................................................................................................................................... 37
闪存EEPROM控制块...................................................................................................37
闪存EEPROM阵列............................................................................................................... 37
闪存EEPROM寄存器......................................................................................................... 37
手术...................................................................................................................................40
编程闪存EEPROM .............................................. .............................................. 42
擦除闪存EEPROM ...................................................................................................... 44
编程/擦除保护联锁............................................. ............................................ 46
停止或等待模式..................................................................................................................... 46
测试模式.................................................................................................................................46
EEPROM
47
EEPROM编程模型............................................... ................................................. 47
EEPROM控制寄存器...................................................................................................... 48
复位和中断
52
异常优先......................................................................................................................52
可屏蔽中断................................................................................................................... 52
中断控制和优先级寄存器............................................. ........................................ 53
复位....................................................................................................................................... 54
复位的影响.........................................................................................................................54
注册堆叠......................................................................................................................55
时钟功能
57
时钟源...........................................................................................................................57
计算机正常操作（ COP ） ............................................ ............................................ 57
实时中断...................................................................................................................57
时钟监视器............................................................................................................................57
时钟功能寄存器.......................................................................................................... 58
时钟分频器链................................................................................................................. 60
2
2.1
2.2
2.3
2.4
2.5
中央处理单元
3
3.1
3.2
3.3
3.4
3.5
4
5
5.1
5.2
5.3
5.4
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
8
8.1
8.2
9
9.1
9.2
9.3
9.4
9.5
9.6
10
10.1
10.2
10.3
10.4
10.5
10.6
MC68HC912B32
MC68HC912B32TS/D
摩托罗拉
3
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