SH7146 Datasheet, PDF (784/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 19 Flash Memory
19.2.5 Block Division
The user MAT is divided into 64 kbytes (three blocks), 32 kbytes (one block), and 4 kbytes (eight
blocks) as shown in figure 19.4. The user MAT can be erased in this divided-block units and the
erase-block number of EB0 to EB11 is specified when erasing.
The RAM emulation can be performed in the eight blocks of 4 kbytes.
Address H'00000000
< User MAT >
4 kbytes × 8
32 kbytes
Erase block
EB0
to
*
EB7
EB8
64 kbytes
64 kbytes
EB9
EB10
Last address H'0003FFFF
64 kbytes
EB11
Note: * RAM emulation can be performed in the eight 4-kbyte blocks.
Figure 19.4 Block Division of User MAT
19.2.6 Programming/Erasing Interface
Programming/erasing is executed by downloading the on-chip program to the on-chip RAM and
specifying the program address/data and erase block by using the interface registers/parameters.
The procedure program is made by the user in user program mode and user boot mode. The
overview of the procedure is as follows. For details, see section 19.5.2, User Program Mode.
Rev. 3.00 May 17, 2007 Page 740 of 974
REJ09B0229-0300