SH7080_09 Datasheet, PDF (1342/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 23 Flash Memory
5. Note on programming the product having a 256-Kbyte user MAT
If an attempt is made to program the product having a 256-Kbyte user MAT with more than
256 Kbytes, data programmed after the first 256 Kbytes are not guaranteed.
6. Compatibility with programming/erasing program of conventional F-ZTAT SH
microcomputer
A programming/erasing program for flash memory used in the conventional F-ZTAT SH
microcomputer which does not support download of the on-chip program by a SCO transfer
request cannot run in this LSI.
Be sure to download the on-chip program to execute programming/erasing of flash memory in
this LSI.
7. Monitoring runaway by WDT
Unlike the conventional F-ZTAT SH microcomputer, no countermeasures are available for a
runaway by WDT during programming/erasing by the downloaded on-chip program.
Prepare countermeasures (e.g. use of the user branch routine and periodic timer interrupts) for
WDT while taking the programming/erasing time into consideration as required.
Rev. 4.00 Dec. 15, 2009 Page 1282 of 1558
REJ09B0181-0400