Renesas R8C/20 User Manual

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.)

Renesas R8C/20 Specifications

General

Brand	Renesas
Model	R8C/20
Category	Control Unit
Language	English