H8SXSLASH1663R datasheet(1194/1504 Pages) RENESAS

1194 / 1504 page

Section 25 Flash Memory

Rev. 2.00 Sep. 24, 2008 Page 1162 of 1468

REJ09B0412-0200

7. Switching of the memory MATs by FMATS should be needed when programming/erasure of

the user MAT is operated in user boot mode. The program which switches the memory MATs

should be executed from the on-chip RAM. For details, see section 25.11, Switching between

User MAT and User Boot MAT. Make sure you know which memory MAT is currently

selected when switching them.

8. When the program data storage area is within the flash memory area, an error will occur even

when the data stored is normal program data. Therefore, the data should be transferred to the

on-chip RAM to place the address that the FMPDR parameter indicates in an area other than

the flash memory.

In consideration of these conditions, the areas in which the program data can be stored and

executed are determined by the combination of the processing contents, operating mode, and bank

structure of the memory MATs, as shown in tables 25.8 to 25.12.

Table 25.8

Executable Memory MAT

Operating Mode

Processing Contents

User Program Mode

User Boot Mode*

Programming

See table 25.9

See table 25.11

Erasing

See table 25.10

See table 25.12

Note:

Programming/Erasure is possible to the user MAT.

H8SX/1663R Datasheet(PDF) 1194 Page - Renesas Technology Corp