H8SLASH3021 datasheet(500/712 Pages) RENESAS

500 / 712 page

15. ROM

Rev.2.00 Mar. 22, 2007 Page 476 of 684

REJ09B0352-0200

Table 15.8

Wait Time after P Bit Setting

Item

Symbol

Wait time after P bit setting

When reprogramming loop count (n)

is 1 to 6

sp30

When reprogramming loop count (n)

is 7 or more

sp200

In case of additional programming

processing*

sp10

Note:

Additional programming processing is necessary only when the reprogramming loop

count (n) is 1 to 6.

6. The program/program-verify flowchart for the H8/3022F is shown in figure 15.11.

To cover the points noted above, bits on which reprogramming processing is to be executed,

and bits on which additional programming is to be executed, must be determined as shown

below.

Since reprogram data and additional-programming data vary according to the progress of the

programming procedure, it is recommended that the following data storage areas (128 bytes

each) be provided in RAM.

Table 15.9

Reprogram Data Computation Table

(D)

Result of Verify-Read

after Write Pulse

Application (V)

(X)

Result of

Operation

Comments

Programming completed: reprogramming

processing not to be executed

Programming incomplete: reprogramming

processing to be executed

—

Still in erased state: no action

Legend:

D: Source data of bits on which programming is executed.

X: Source data of bits on which reprogramming is executed.

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