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R8C/20 Datasheet(PDF) 420 Page - Renesas Technology Corp |
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R8C/20 Datasheet(HTML) 420 Page - Renesas Technology Corp |
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420 / 501 page  R8C/20 Group, R8C/21 Group 19. Flash Memory Rev.2.00 Aug 27, 2008 Page 404 of 458 REJ09B0250-0200 19.6 Parallel I/O Mode Parallel I/O mode is used to input and output the required software command, address and data parallel to controls (read, program and erase) for internal flash memory. Use a parallel programmer which supports this MCU. Contact the manufacturer of your parallel programmer about the parallel programmer and refer to the user’s manual of your parallel programmer for details on how to use it. User ROM area can be rewritten shown in Figure 19.1 and Figure 19.2 in parallel I/O mode. 19.6.1 ROM Code Protect Function The ROM code protect function disables to read and rewrite the flash memory. (Refer to 19.3 Functions to Prevent Rewriting of Flash Memory.) |
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