Datasheet

Section 3 MCU Operating Modes
Rev. 4.00 Sep 27, 2006 page 91 of 1130
REJ09B0327-0400
3.5 Memory Map in Each Operating Mode
Figures 3.1 to 3.5 show memory maps for each of the operating modes.
The address space is 64 kbytes in modes 1 and 3 (normal modes), and 16 Mbytes in mode 2
(advanced mode).
The on-chip ROM capacity is 64 kbytes (H8S/2142, H8S/2147, and H8S/2147N), 96 kbytes
(H8S/2143), or 128 kbytes (H8S/2144 and H8S/2148), but only 56 kbytes are available in mode 3
(normal mode).
Do not access the reserved area and addresses of modules not supported by the product. Note that
normal operation is not guaranteed when these regions are accessed.
For details, see section 6, Bus Controller.