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AN.No.G1216B1N000-3D0E
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3.3 Reset Function
Setting the RST terminal to a low level when the power is on allows for initial setup.
Display OFF
Display start line register: Set address 0.
While the RST remains at a low level, instructions other than the status read cannot be accepted.
Execute other instructions after confirming that DB
4
=0 (reset release) and DB
7
=0 (ready) , using the
status read instruction.
The power conditions for power-on initial setup are as follows:.
Item
Reset time
Rise time
Symbol
t
RST
t
r
Min
1.0
Typ. Max
200
unit
s
ns
t
RST
t
r
0.3V
DD
V
DD
RST
4.5V
0.7V
DD
If the RESET is executed during operation, retention of the contents of all registers (excluding an
ON/OFF register) and the RAM is not guaranteed. Always set them again.