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(5) Internal manipulation setup parameter
If the self-programming mode is switched to the normal operation mode, the µ PD70F3107A must wait for 100
µ s before it accesses the flash memory. In the program example in (4) above, the elapse of this wait time is
ensured by setting ISETUP to "130" (@ 50 MHz operation). The total number of execution clocks in this
example is 39 clocks (divh instruction (35 clocks) + add instruction (1 clock) + jne instruction (3 clocks)).
Ensure that a wait time of 100 µ s elapses by using the following expression.
39 clocks (total number of execution clocks) × 20 ns (@ 50 MHz operation) × 130 (ISETUP) = 101.4 µ s
(wait time)
FLASH MEMORY ( µ µ µ µ PD70F3107A)
CHAPTER 16
User's Manual U14359EJ4V0UM
535
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