HD64F2168 Datasheet, PDF (655/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

20.1.3 Flash Memory MAT Configuration
This LSI’s flash memory is configured by the 8-kbyte user boot MAT and 256-kbyte (H8S/2168),
384-kbyte (H8S/2167), or 512-kbytes (H8S/2166) user MAT.
The start address is allocated to the same address in the user MAT and user boot MAT. Therefore,
when the 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.
<User MAT>
Address H'000000
Address H'03FFFF
Address H'05FFFF
<User Boot MAT>
Address H'000000
256 kbytes
(H8S/2168)
Address H'001FFF
384 kbytes
(H8S/2167)
512 kbytes
(H8S/2166)
8 kbytes
Address H'07FFFF
Figure 20.3 Flash Memory Configuration
The size of the user MAT is different from that of the user boot MAT. An address which exceeds
the size of the 8-kbyte user boot MAT should not be accessed. If the attempt is made, data is read
as undefined value.
Rev. 3.00, 03/04, page 615 of 830