The pointer is set to region ‘‘A’’ by the ‘‘00H’’ command and to region ‘‘B’’ by the ‘‘50H’’ command

(Example)

The ‘‘00H’’ command needs to be input to set the pointer back to region ‘‘A’’ when the pointer exists in region ‘‘B’’

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FIGURE 17 Example for Pointer Set

In case of programming into region ‘‘B’’ only by setting the start point in region ‘‘B’’ with ‘‘50H’’ command it is necessary to reset

the content of data register to ‘‘1’’ by ‘‘FFH’’ command

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(3) ACCEPTABLE COMMANDS AFTER SERIAL INPUT COMMAND OF ‘‘80H’’

Once the serial input command (‘‘80H’’) is input do not input any command other than the program execution command

(‘‘10H’’) or the reset command (‘‘FFH’’) during programming

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FIGURE 18 Reset After Serial Input

If a command other than ‘‘10H’’ or ‘‘FFH’’ is input the program operation is not performed

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