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参数资料
| 型号： | SN8P1603S |
| 厂商： | SONIX Technology Co., Ltd. |
| 英文描述： | 8-Bit Micro-Controller |
| 中文描述： | 8位微控制器 |
| 文件页数： | 17/94页 |
| 文件大小： | 540K |
| 代理商： | SN8P1603S |
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SN8P1600
8-bit micro-controller
SONiX TECHNOLOGY CO., LTD
Page 17
Revision 1.94
USER RESET VECTOR ADDRESS (0000H)
A 1-word vector address area is used to execute system reset. After power on reset or watchdog timer overflow reset,
then the chip will restart the program from address 0000h and all system registers will be set as default values. The
following example shows the way to define the reset vector in the program memory.
Example: After power on reset, external reset active or reset by watchdog timer overflow.
CHIP SN8P1602
ORG
0
; 0000H
JMP
START
; Jump to user program address.
.
; 0004H ~ 0007H are reserved
ORG
10H
START:
; 0010H, The head of user program.
.
; User program
.
.
.
ENDP
; End of program
INTERRUPT VECTOR ADDRESS (0008H)
A 1-word vector address area is used to execute interrupt request. If any interrupt service executes, the program
counter (PC) value is stored in stack buffer and jump to 0008h of program memory to execute the vectored interrupt.
Users have to define the interrupt vector. The following example shows the way to define the interrupt vector in the
program memory.
Example 1: This demo program includes interrupt service routine and the user program is behind the
interrupt service routine.
CHIP SN8P1602
.DATA
PFLAGBUF
.CODE
ORG
0
; 0000H
JMP
START
; Jump to user program address.
.
; 0004H ~ 0007H are reserved
ORG
8
; Interrupt service routine
B0XCH
A, ACCBUF
; B0XCH doesn’t change C, Z flag
B0MOV
A, PFLAG
B0MOV
PFLAGBUF, A
; Save PFLAG register in a buffer
.
.
B0MOV
A, PFLAGBUF
B0MOV
PFLAG, A
; Restore PFLAG register from buffer
B0XCH
A, ACCBUF
; B0XCH doesn’t change C, Z flag
RETI
; End of interrupt service routine
START:
; The head of user program.
.
; User program
.
JMP
START
; End of user program
ENDP
; End of program
相关PDF资料 |
PDF描述 |
|---|---|
| SN8P1603X | 8-Bit Micro-Controller |
| SN8P1604 | 8-Bit Micro-Controller |
| SN8P1604AK | 8-Bit Micro-Controller |
| SN8P1604AP | 8-Bit Micro-Controller |
| SN8P1604AQ | 8-Bit Micro-Controller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN8P1603X | 制造商:SONIX 制造商全称:SONIX 功能描述:8-Bit Micro-Controller |
| SN8P1604 | 制造商:SONIX 制造商全称:SONIX 功能描述:8-Bit Micro-Controller |
| SN8P1604AK | 制造商:SONIX 制造商全称:SONIX 功能描述:8-Bit Micro-Controller |
| SN8P1604AP | 制造商:SONIX 制造商全称:SONIX 功能描述:8-Bit Micro-Controller |
| SN8P1604AQ | 制造商:SONIX 制造商全称:SONIX 功能描述:8-Bit Micro-Controller |
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