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7906 Datasheet(PDF) 402 Page - Renesas Technology Corp |
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7906 Datasheet(HTML) 402 Page - Renesas Technology Corp |
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402 / 531 page  FLASH MEMORY VERSION 7906 Group User’s Manual Rev.2.0 19-25 [Precautions for flash memory serial I/O mode] [Precautions for flash memory serial I/O mode] 1. If the boot ROM area has been reprogrammed in the flash memory parallel I/O mode, the flash memory serial I/O mode cannot be used. 2. In the flash memory serial I/O mode, we recommend to connect pin P6OUTCUT with VCC via a resistor. (Refer to section “19.3.2 Examples of handling control pins in flash memory serial I/O mode.”) 3. When there is a possibility that the user reset signal becomes “L” level in the flash memory serial I/O mode, be sure to cut the current flow between the user reset pin and pin RESET by using a jumper switch, etc. (Refer to section “19.3.2 Examples of handling control pins in flash memory serial I/O mode.”) 4. Addresses FF9016 to FF9F16 (the user ROM area) are reserved for serial and parallel programmers. Therefore, be sure not to use this area. |
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