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EM73PA88A 参数 Datasheet PDF下载

EM73PA88A图片预览
型号: EM73PA88A
PDF下载: 下载PDF文件 查看货源
内容描述: 4位微控制器的液晶显示器产品 [4-BIT MICRO-CONTROLLER FOR LCD PRODUCT]
分类和应用: 显示器微控制器
文件页数/大小: 45 页 / 410 K
品牌: ELAN [ ELAN MICROELECTRONICS CORP ]
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EM73PA88A  
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT  
User's program and fixed data are stored in the program ROM. User's program is executed using the PC value  
to fetch an instruction code.  
The 16Kx8 bits program ROM can be divided into 4 banks. There are 4Kx8 bits per bank.  
The program ROM bank is selected by P3(1..0). The program counter is a 13-bit binary counter. The PC  
and P3 are initialized to "0" during reset.  
When P3(1..0)=00B, the bank0 and bank1 of program ROM will be selected. P3(1..0)=01B, the bank0 and  
bank2 will be selected.  
Address  
0000h  
P3=xx00B  
Bank0  
P3=xx01B  
Bank0  
P3=xx10B  
Bank0  
:
:
0FFFh  
1000h  
:
:
Bank1  
Bank2  
Bank3  
1FFFh  
PROGRAM EXAMPLE :  
BANK 0  
START:  
:
:
:
LDIA #00H  
OUTA P3  
; set program ROM to bank1  
; set program ROM to bank2  
; set program ROM to bank3  
B
:
XA1  
XA :  
XB :  
:
:
LDIA #01H  
OUTA P3  
B
:
XB1  
:
:
LDIA #02H  
OUTA P3  
B
:
XC1  
XC :  
XD :  
:
:
B
:
XD  
:
:
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
BANK 1  
XA1 :  
:
:
B
:
XA  
XA2 :  
:
* This specification are subject to be changed without notice.  
10.8.2001  
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