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SN8P1604AK 参数 Datasheet PDF下载

SN8P1604AK图片预览
型号: SN8P1604AK
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 REGISTERS  
The stack pointer (STKP) is a 3-bit register to store the address used to access the stack buffer, 10-bit data memory  
(STKnH and STKnL) set aside for temporary storage of stack addresses.  
The two stack operations are writing to the top of the stack and reading from the top of stack. Push operation  
decrements the STKP and the pop operation increments each time. That makes the STKP always point to the top  
address of stack buffer and write the last program counter value (PC) into the stack buffer.  
The program counter (PC) value is stored in the stack buffer before a CALL instruction executed or during interrupt  
service routine. Stack operation is a LIFO type (Last in and first out). The stack pointer (STKP) and stack buffer  
(STKnH and STKnL) are located in the system register area bank 0.  
0DFH  
STKP  
Read/Write  
After reset  
Bit 7  
GIE  
R/W  
0
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
STKPB2  
R/W  
Bit 1  
STKPB1  
R/W  
Bit 0  
STKPB0  
R/W  
-
-
-
-
-
-
-
-
-
-
-
-
1
1
1
STKPBn: Stack pointer. (n = 0 ~ 2)  
GIE: Global interrupt control bit. 0 = disable, 1 = enable. There is more on this in interrupt chapter.  
Example: Stack pointer (STKP) reset routine.  
MOV  
B0MOV  
A, #00000111B  
STKP, A  
STKn = <STKnH , STKnL> (n = 3 ~ 0)  
SN8P1602/1603  
0F0H~0FFH  
STKnH  
Read/Write  
After reset  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
SnPC9  
R/W  
0
Bit 0  
SnPC8  
R/W  
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SN8P1604  
0F0H~0FFH  
STKnH  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
SnPC11  
R/W  
Bit 2  
SnPC10  
R/W  
Bit 1  
SnPC9  
R/W  
0
Bit 0  
SnPC8  
R/W  
0
-
-
-
-
-
-
-
-
-
-
-
-
Read/Write  
After reset  
0
0
SN8P1602/1603/1604  
0F0H~0FFH  
STKnL  
Read/Write  
After reset  
Bit 7  
SnPC7  
R/W  
0
Bit 6  
SnPC6  
R/W  
0
Bit 5  
SnPC5  
R/W  
0
Bit 4  
SnPC4  
R/W  
0
Bit 3  
SnPC3  
R/W  
0
Bit 2  
SnPC2  
R/W  
0
Bit 1  
SnPC1  
R/W  
0
Bit 0  
SnPC0  
R/W  
0
STKnH: Store PCH data as interrupt or call executing. The n expressed 0 ~3.  
STKnL: Store PCL data as interrupt or call executing. The n expressed 0 ~3.  
SONiX TECHNOLOGY CO., LTD  
Page 30  
Revision 1.94  
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