SH7014 Datasheet, PDF (579/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

18. 128 kB Flash Memory (F-ZTAT)
18.11.9 Notes on Memory Programming
1. When programming addresses which have previously been programmed, carry out auto-
erasing before auto-programming.
2. When performing programming using PROM mode on a chip that has been
programmed/erased in an on-board programming mode, auto-erasing is recommended before
carrying out auto-programming.
Notes: 1. The flash memory is initially in the erased state when the device is shipped by Renesas
Technology. For other chips for which the erasure history is unknown, it is
recommended that auto-erasing be executed to check and supplement the initialization
(erase) level.
2. Auto-programming should be performed once only on the same address block.
Additional programming cannot be performed on previously programmed address
blocks.
Rev.5.00 Sep. 27, 2007 Page 545 of 716
REJ09B0398-0500