
CHAPTER 3 CPU FUNCTION
User’s Manual U15905EJ2V1UD
68
3.4.5
Areas
(1) Internal ROM area
(a) Memory map
1 MB of addresses 0000000H to 00FFFFFH is reserved as the internal ROM area.
<1>
PD703200 and 703200Y
128 KB are allocated to the following addresses as the internal physical ROM (mask ROM).
Addresses 0000000H to 001FFFFH
Figure 3-5. Internal ROM Area (128 KB)
Access prohibited
area
Internal ROM
0020000H
00FFFFFH
0000000H
001FFFFH
<2>
PD703201, 703201Y, 703204, and 703204Y
256 KB are allocated to the following addresses as the internal physical ROM (mask ROM).
0000000H to 003FFFFH
<3>
PD70F3201, 70F3201Y, 70F3204, and 70F3204Y
256 KB are allocated to the following addresses as the internal physical ROM (flash memory).
0000000H to 003FFFFH