Reset function, Hardware, Function block operations – Renesas 4514 User Manual
Page 62
4513/4514 Group User’s Manual
HARDWARE
1-49
FUNCTION BLOCK OPERATIONS
RESET FUNCTION
System reset is performed by applying “L” level to RESET pin for
1 machine cycle or more when the following condition is satisfied;
the value of supply voltage is the minimum value or more of the
recommended operating conditions.
Then when “H” level is applied to RESET pin, software starts from
address 0 in page 0.
Fig. 32 Reset release timing
Fig. 33 RESET pin input waveform and reset operation
RESET
0.3V
DD
0.85V
DD
Software starts
(address 0 in page 0)
f(X
IN
)
is counted 16892 to
16895 times.
(Note)
Note: Keep the value of supply voltage to the minimum value
or more of the recommended operating conditions.
Reset input
1 machine cycle or more
=
f(X
IN
)
RESET
Software starts
(address 0 in page 0)
f(X
IN
)
is counted 16892 to
16895 times.
(Note)
Note: It depends on the internal state of the microcomputer
when reset is performed.