 English |
|
|
|
|
|
|
|
| MC80F0204 Datasheet, PDF (101/126 Pages) List of Unclassifed Manufacturers – 8-BIT SINGLE-CHIP MICROCONTROLLERS | |||
| |||
| ◁ |
Preliminary
MC80F0104/0204
VCC
7036P
10kâ¦
+
10uF
to the RESET pin
Figure 20-1 Simple Power-on-Reset Circuit
Oscillator
(XIN pin)
RESET
1234567
ADDRESS
BUS
?
??
?
FFFE FFFF Start
DATA
BUS
?
? ? ? FE ADL ADH OP
Stabilization Time
tST =65.5mS at 4MHz
Reset Process Step
1
tST = fXIN ÷1024 x 256
MAIN PROGRAM
Figure 20-2 Timing Diagram after Reset
The Address Fail Reset is the function to reset the system
by checking code access of abnormal and unwished ad-
dress caused by erroneous program code itself or external
noise, which could not be returned to normal operation and
would become malfunction state. If the CPU tries to fetch
the instruction from ineffective code area or RAM area, the
address fail reset is occurred. Please refer to Figure 11-2
for setting address fail option.
Mar. 2005 Ver 0.2
97
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese