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SN8P1706P 参数 Datasheet PDF下载

SN8P1706P图片预览
型号: SN8P1706P
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器 [8-Bit Micro-Controller]
分类和应用: 微控制器
文件页数/大小: 145 页 / 774 K
品牌: SONIX [ SONIX TECHNOLOGY COMPANY ]
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SN8P1700  
8-bit micro-controller build-in 12-bit ADC  
ACCUMULATOR  
The ACC is an 8-bits data register responsible for transferring or manipulating data between ALU and data memory. If  
the result of operating is zero (Z) or there is carry (C or DC) occurrence, then these flags will be set to PFLAG register.  
ACC is not in data memory (RAM), so ACC can’t be access by “B0MOV” instruction during the instant addressing  
mode.  
Example: Read and write ACC value.  
; Read ACC data and store in BUF data memory  
MOV  
.
BUF, A  
.
; Write a immediate data into ACC  
MOV  
.
A, #0FH  
.
; Write ACC data from BUF data memory  
MOV  
.
A, BUF  
.
The PUSH and POP instructions don’t store ACC value as any interrupt service executed. ACC must be exchanged to  
another data memory defined by users. Thus, once interrupt occurs, these data must be stored in the data memory  
based on the user’s program as follows.  
Example: ACC and working registers protection.  
ACCBUF  
EQU  
00H  
; ACCBUF is ACC data buffer in bank 0.  
INT_SERVICE:  
; B0XCH doesn’t change C, Z flag  
; Push instruction  
B0XCH  
A, ACCBUF  
PUSH.  
.
.
.
.
.
POP  
; Pop instruction  
B0XCH  
A, ACCBUF  
; Re-load ACC  
RETI  
; Exit interrupt service vector  
Notice: To save and re-load ACC data must be used “B0XCH” instruction, or the PLAGE value maybe  
modified by ACC.  
SONiX TECHNOLOGY CO., LTD  
Page 40  
Revision 1.94  
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