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SN8P1603S 参数 Datasheet PDF下载

SN8P1603S图片预览
型号: SN8P1603S
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: 94 页 / 531 K
品牌: SONIX [ SONIX TECHNOLOGY COMPANY ]
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SN8P1600  
8-bit micro-controller  
STACK OPERATION EXAMPLE  
The two kinds of Stack-Save operations refer to the stack pointer (STKP) and write the content of program counter (PC)  
to the stack buffer are CALL instruction and interrupt service. Under each condition, the STKP decreases and points to  
the next available stack location. The stack buffer stores the program counter about the op-code address. The  
Stack-Save operation is as the following table.  
STKP Register  
Stack Buffer  
Stack Level  
Description  
STKPB2  
STKPB1  
STKPB0  
High Byte Low Byte  
1
1
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
Free  
STK0H  
STK1H  
STK2H  
STK3H  
-
Free  
STK0L  
STK1L  
STK2L  
STK3L  
-
-
-
-
-
0
1
2
3
4
-
> 4  
Stack Over, error  
There are Stack-Restore operations correspond to each push operation to restore the program counter (PC). The RETI  
instruction uses for interrupt service routine. The RET instruction is for CALL instruction. When a pop operation occurs,  
the STKP is incremented and points to the next free stack location. The stack buffer restores the last program counter  
(PC) to the program counter registers. The Stack-Restore operation is as the following table.  
STKP Register  
Stack Buffer  
Stack Level  
Description  
STKPB2  
STKPB1  
STKPB0  
High Byte Low Byte  
0
1
1
1
1
1
0
0
1
1
1
0
1
0
1
STK3H  
STK2H  
STK1H  
STK0H  
Free  
STK3L  
STK2L  
STK1L  
STK0L  
Free  
-
-
-
-
-
4
3
2
1
0
SONiX TECHNOLOGY CO., LTD  
Page 31  
Revision 1.94  
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