
CHAPTER 3 CPU FUNCTION
User’s Manual U15905EJ2V1UD
66
3.4.4
Memory map
The V850ES/SA2 and V850ES/SA3 reserve the areas shown in Figure 3-3.
Figure 3-3. Data Memory Map (Physical Addresses)
(80 KB)
Use prohibited
External memory areaNote 1
(8 MB)
Internal ROM areaNote 2
(1 MB)
External memory area
(1 MB)
Internal RAM area
(16 KB)
Internal peripheral I/O area
(4 KB)
Use prohibited
External memory area
(4 MB)
External memory area
(2 MB)
CS0
CS1
CS2
CS3
3FFFFFFH
3FEC000H
1000000H
0FFFFFFH
0800000H
07FFFFFH
0400000H
03FFFFFH
0200000H
01FFFFFH
0000000H
3FEBFFFH
3FFFFFFH
3FFF000H
3FFEFFFH
3FFB000H
3FFAFFFH
3FEC000H
01FFFFFH
0100000H
00FFFFFH
0000000H
Notes 1. This is the 4 MB space of 0800000H to 0BFFFFFH in the V850ES/SA2 (the area of 0C00000H to
0FFFFFFH is the image of 0800000H to 0BFFFFFH).
2. Fetch access and read access to addresses 0000000H to 00FFFFFH is made to the internal ROM
area. However, data write access to these addresses is made to the external memory area.