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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M16C/1N датащи(PDF) 197 Page - Renesas Technology Corp |
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M16C/1N датащи(HTML) 197 Page - Renesas Technology Corp |
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197 / 238 page  Rev.1.00 Oct 20, 2004 page 185 of 222 M16C/1N Group 19. Flash Memory Version REJ09B0007-0100Z Figure 19.8 Processing before and after low power dissipation mode Turn XIN on Transfer a low power dissipation mode program to any area other than the flash memory Switch the clock source for CPU clock. Turn XIN off. (Note 2) Jump to the low power dissipation mode program which has been transferred to any area other than the flash memory. (The subsequent processing is executed by a program in any area other than the flash memory.) Wait until the flash memory circuit stabilizes (10 µs) (Note 3) Set the FMSTP bit to "0" (flash memory operation) Set FMSTP bit to "1" (flash memory stopped. Low power state) (Note 1) Process of low power dissipation mode or on-chip oscillator low power dissipation mode switch the clock source for CPU clock (Note 2) Low power dissipation mode program Write "0" to the FMR01 bit (CPU rewrite mode disabled) Set the FMR01 bit by writing "0" and then "1" (CPU rewrite mode enabled) Jump to a specified address in the flash memory wait until oscillation stabilizes Note 1: Set the FMSTP bit to "1" after setting the FMR01 bit to "1". Note 2: Before the clock source for CPU clock can be changed, the clock to which to be changed must be stable. Note 3: Insert a 10 µs wait time in a program. The flash memory cannot be accessed during this wait time. |
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