PD64A , 65
目录
1.引脚功能...............................................................................................................................
1.1
1.2
1.3
引脚功能一览表...............................................................................................................................
引脚的输入/输出电路............................................................................................................
与未使用引脚的处理......................................................................................................................
6
6
7
8
2.内部CPU功能..........................................................................................................
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
程序计数器(PC ) ............................................................................................................................
堆栈指针( SP ) ...................................................................................................................................
地址堆栈寄存器( ASR ( RF ) ) .......................................................................................................
9
9
9
9
程序存储器(ROM) ......................................................................................................................... 10
数据存储器(RAM) ................................................................................................................................ 10
数据指针( DP ) ..................................................................................................................................... 11
累加器(A) ...................................................................................................................................... 11
算术逻辑单元( ALU ) ............................................................................................................ 12
旗......................................................................................................................................................... 12
2.9.1
2.9.2
状态标志( F) ............................................................................................................................... 12
进位标志( CY ) ............................................................................................................................. 13
3.端口寄存器( PX ) ................................................................................................................... 14
3.1
3.2
K
I / O
端口( P0)的............................................................................................................................................. 15
K
I
接口/特殊端口( P1 ) ....................................................................................................................... 16
3.2.1
3.2.2
3.2.3
3.2.4
3.3
3.4
K
I
端口(P
11
: P1位4-7 ) ........................................................................................................... 16
S
0
端口( 2位P1的) ....................................................................................................................... 16
S
1
/ LED ( 3位P1的) ...................................................................................................................... 16
S
2
端口( 1位P1的) ....................................................................................................................... 17
控制寄存器0 ( P3 ) ........................................................................................................................... 17
控制寄存器1 ( P4 ) ........................................................................................................................... 18
4.定时器............................................................................................................................................... 19
4.1
4.2
4.3
4.4
定时器配置................................................................................................................................ 19
定时器操作....................................................................................................................................... 20
载波输出.......................................................................................................................................... 21
定时器输出的软件控制......................................................................................................... 21
5.待机功能...................................................................................................................... 22
5.1
5.2
5.3
待机功能的概述.................................................................................................................. 22
待机模式设置和发布......................................................................................................... 23
待机模式发布时间.............................................................................................................. 25
6. RESET ............................................................................................................................................... 26
7. POC电路................................................................................................................................... 27
7.1
7.2
POC电路的功能........................................................................................................................ 28
振荡检查在低电源电压............................................ ................................................. 28
8.系统时钟振荡器...................................................................................................... 29
4
数据表U14380EJ2V0DS00