p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 499

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

19.1.3
This LSI’s flash memory is configured by the 512-Kbyte user MAT and 8-Kbyte user boot MAT.
The start address is allocated to the same address in the user MAT and user boot MAT. Therefore,
when program execution or data access is performed between two MATs, the MAT must be
switched by using FMATS.
The user MAT or user boot MAT can be read in all modes. However, the user boot MAT can be
programmed only in boot mode and programmer mode.
The size of the user MAT is different from that of the user boot MAT. An address that exceeds the
size of the 8-Kbyte user boot MAT should not be accessed. If the attempt is made, data is read as
an undefined value.
19.1.4
The user MAT is divided into 64 Kbytes (seven 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 by
specifying the erase-block number of EB0 to EB15 when erasing.
Address H'07FFFF
Address H'000000
Flash Memory MAT Configuration
Block Division
<User MAT>
Figure 19.3 Flash Memory Configuration
512 Kbytes
Address H'001FFF
Address H'000000
Section 19 Flash Memory (0.18-µm F-ZTAT Version)
Rev. 1.00 Sep. 21, 2006 Page 461 of 658
<User boot MAT>
REJ09B0310-0100
8 Kbytes