SH7125_08 Datasheet, PDF (600/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 17 Flash Memory
17.2.4 Flash Memory Configuration
This LSI's flash memory is configured by the 128-Kbyte, 64-Kbyte, or 32-Kbyte user MAT.
• 128KB
SH71253
SH71243
• 64KB
SH71252
SH71242
• 32KB
SH71241
Address H'00000000
<User MAT>
Address H'00007FFF
(when the size of the user MAT
is 32 kbytes)
Address H'0000FFFF
(when the size of the user MAT
is 64 kbytes)
Address H'0001FFFF
(when the size of the user MAT
is 128 kbytes)
128 kbytes, 64 kbytes,
or 32 kbytes
Figure 17.3 Flash Memory Configuration
17.2.5 Block Division
The user MAT is divided into 64 Kbytes (128-kbyte version: one block), 32 Kbytes (one block),
and 4 Kbytes (eight blocks) as shown in figure 17.4. The user MAT can be erased in this divided-
block units and the erase-block number of EB0 to EB9 is specified when erasing. The user MAT
is divided into 16 Kbytes (two blocks) for 32-Kbyte ROM version.
• 128 kbytes
H'00000000
H'0001FFFF
• 64 kbytes
< User MAT >
Erase block
EB0
H'00000000
4 kbytes × 8 to
EB7
32KB
EB8
H'0000FFFF
64KB
EB9
• 32 kbytes
< User MAT >
Erase block
EB0
H'00000000
4 kbytes × 8 to
EB7
H'00007FFF
32KB
EB8
Figure 17.4 Block Division of User MAT
< User MAT >
Rev. 4.00 Jul. 25, 2008 Page 580 of 750
REJ09B0243-0400