
MC97F6108A User’s manual
18. Reset
191
18.2
RESET noise canceller
The Figure 88 is the noise canceller time diagram for RESET Noise canceler. It has the noise cancel
value of about 8us (@V
DD
=5V) to the low input of System Reset.
Figure 88. Reset Noise Canceller Time Diagram
18.3
Power on reset
When rising device power, POR (Power On Reset) has a function to reset a device. If POR is used, it
executes the device RESET function instead of the RESET IC or the RESET circuits.
Figure 89. Fast VDD Rising Time
t > T
RNC
t > T
RNC
t > T
RNC
t < T
RNC
t < T
RNC
A
A
’
VDD
nPOR
(Internal Signal)
Internal RESETB
Oscillation
BIT Starts
BIT Overflows
Fast VDD Rise Time, max. 30.0V/ms