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SN8P1602A bảng dữ liệu(PDF) 67 Page - SONiX Technology Company

tên linh kiện SN8P1602A
Giải thích chi tiết về linh kiện  8-Bit Micro-Controller
PDF  76 Pages
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nhà sản xuất  SONIX [SONiX Technology Company]
Trang chủ  http://www.sonix.com.tw
Logo SONIX - SONiX Technology Company

SN8P1602A bảng dữ liệu(HTML) 67 Page - SONiX Technology Company

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SN8P1602B
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 67
Version 1.1
PROGRAM CHECK LIST
Item
Description
Undefined Bits
All bits those are marked as “0” (undefined bits) in system registers should be set “0” to avoid
unpredicted system errors.
Interrupt
Do not enable interrupt before initializing RAM.
Non-Used I/O
Non-used I/O ports should be set as output low mode or pull-up at input mode to save
current consumption.
Sleep Mode
Enable on-chip pull-up resistors of port 0 and port 1 to avoid unpredicted wakeup.
Stack Buffer
Be careful of function call and interrupt service routine operation. Don’t let stack buffer
overflow or underflow.
System Initial
1.
Write 0x7F into STKP register to initial stack pointer and disable global interrupt
2.
Clear all RAM.
3.
Initialize all system register even unused registers.
Noisy Immunity
1.
Enable OSG and High_Clk / 2 code option together
2.
Enable noise filter code option in SN8P1602B.
3.
Enable the watchdog option to protect system crash.
4.
Non-used I/O ports should be set as output low mode
5.
Constantly refresh important system registers and variables in RAM to avoid system
crash by a high electrical fast transient noise.
6.
Disable Low Power Function



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