By:
Masud-ul-Hasan
8
Reset
•External reset is
asynchronous to the internal clock.
•RST
pin must be high for at least two machine cycles while the oscillator is running.
•Internal RAM is not
affected by reset.
•Reset sets PC to
0000H.
•Typical circuits:
8051
RST
+5V
8.2K Ω
10µF
8051
RST
+5V
8.2K
Ω
10
µF
+5V
Manual
Reset
Power-on
Reset
Reset
100Ω