graficky diplay - set modify read

[Lukac Michal]

Zdravim, mam CB graficky display s IST3020. a podporuje taketo instrukcie:

Set Modify-Read
This instruction stops the automatic increment of the column address by the read display data instruction,
but the column address is still increased by the write display data instruction. And it reduces the load of
microprocessor when the data of a specific area is repeatedly changed during cursor blinking or others.
This mode is canceled by the reset Modify-read instruction.

Reset Modify-Read
This instruction cancels the Modify-read mode, and makes the column address return to its initial value
just before the set Modify-read instruction is started.

Neviem si nejak predstavit ako to mozem vyuzit pri kresleni blikajuceho znaku v podstate to len pri citani
z RAM zastavy inkrementovanie adresy, a zapamata si pociatocnu adresu, k comu to je dobre?

DS: str.37,38
https://www.buydisplay.com/download/ic/IST3020.pdf

dik,
m.


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