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HT46R01 参数 Datasheet PDF下载

HT46R01图片预览
型号: HT46R01
PDF下载: 下载PDF文件 查看货源
内容描述: 10引脚MSOP A / D型8位OTP MCU [10-Pin MSOP A/D Type 8-Bit OTP MCU]
分类和应用:
文件页数/大小: 60 页 / 482 K
品牌: HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
 浏览型号HT46R01的Datasheet PDF文件第5页浏览型号HT46R01的Datasheet PDF文件第6页浏览型号HT46R01的Datasheet PDF文件第7页浏览型号HT46R01的Datasheet PDF文件第8页浏览型号HT46R01的Datasheet PDF文件第10页浏览型号HT46R01的Datasheet PDF文件第11页浏览型号HT46R01的Datasheet PDF文件第12页浏览型号HT46R01的Datasheet PDF文件第13页  
HT46R01/HT46R02/HT46R03  
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Program Memory Structure  
·
Location 00CH  
Program Memory will be transferred to the TBLH special  
register. Any unused bits in this transferred higher order  
byte will be read as ²0².  
For the HT46R01 devices, this internal vector is used  
by the A/D converter. When an A/D conversion cycle  
is complete, the program will jump to this location and  
begin execution if the A/D interrupt is enabled and the  
stack is not full. For the HT46R02 and HT46R03 de-  
vices, this vector is used by the Timer/Event Counter  
1. If a Timer/Event Counter 1overflow occurs, the pro-  
gram will jump to this location and begin execution if  
the Timer/Event counter 1 interrupt is enabled and the  
stack is not full.  
The following diagram illustrates the addressing/data  
flow of the look-up table:  
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·
Location 010H  
This internal vector is only used by the A/D interrupt  
converter in the HT46R02 and HT46R03 devices.  
When an A/D conversion cycle is complete, the pro-  
gram will jump to this location and begin execution if  
the A/D interrupt is enabled and the stack is not full.  
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Table Program Example  
The following example shows how the table pointer and  
table data is defined and retrieved from the HT46R02  
devices. This example uses raw table data located in  
the last page which is stored there using the ORG state-  
ment. The value at this ORG statement is ²700H² which  
refers to the start address of the last page within the 2K  
Program Memory of the HT46R02 microcontrollers. The  
table pointer is setup here to have an initial value of  
²06H². This will ensure that the first data read from the  
data table will be at the Program Memory address  
²706H² or 6 locations after the start of the last page.  
Note that the value for the table pointer is referenced to  
the first address of the present page if the ²TABRDC  
[m]² instruction is being used. The high byte of the table  
data which in this case is equal to zero will be trans-  
ferred to the TBLH register automatically when the  
²TABRDL [m]² instruction is executed.  
Look-up Table  
Any location within the Program Memory can be defined  
as a look-up table where programmers can store fixed  
data. To use the look-up table, the table pointer must  
first be setup by placing the lower order address of the  
look up data to be retrieved in the table pointer register,  
TBLP. This register defines the lower 8-bit address of  
the look-up table.  
After setting up the table pointer, the table data can be  
retrieved from the current Program Memory page or last  
Program Memory page using the ²TABRDC[m]² or  
²TABRDL [m]² instructions, respectively. When these in-  
structions are executed, the lower order table byte from  
the Program Memory will be transferred to the user de-  
fined Data Memory register [m] as specified in the in-  
struction. The higher order table data byte from the  
Rev. 1.00  
9
September 21, 2007  
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