ADDRESS SPACE
3.3 Internal ROM and Extended External Areas
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3.3 Internal ROM and Extended External Areas
The 8-Mbyte area in the user space from the address H’0000 0000 to the address H’007F FFFF comprise the
internal ROM and extended external areas. For the address mapping of these areas that differs with each opera-
tion mode, see Section 3.2, “Operation Modes.”
3.3.1 Internal ROM Area
The internal ROM is allocated to the addresses shown below. Located at the beginning of this area is the EIT
vector entry (and the ICU vector table).
Table 3.3.1 Internal ROM Allocation Address
Type Name
M32180F8
Size
Allocation Address
1 Mbytes
H’0000 0000 to H’000F FFFF
3.3.2 Extended External Area
The extended external area is only available when external extension or processor mode is selected by opera-
tion mode settings. When accessing the extended external area, the control signals necessary to access exter-
nal devices are output.
The CS0# through CS3# signals are output corresponding to the address mapping of the extended external
area. The CS0#, CS1#, CS2# and CS3# signals are output for the CS0, CS1, CS2 and CS3 areas, respectively.
Table 3.3.2 Address Mapping of the Extended External Area in Each Operation Mode
Operation Mode
Address Mapping of Extended External Area
None
Single-chip mode
External extension mode
Addresses H’0010 0000 to H’001F FFFF (CS0 area: 1 Mbytes)
Addresses H’0020 0000 to H’003F FFFF (CS1 area: 2 Mbytes)
Addresses H’0040 0000 to H’005F FFFF (CS2 area: 2 Mbytes)
Addresses H’0060 0000 to H’007F FFFF (CS3 area: 2 Mbytes)
Processor mode
Addresses H’0000 0000 to H’001F FFFF (CS0 area: 2 Mbytes)
Addresses H’0020 0000 to H’003F FFFF (CS1 area: 2 Mbytes)
Addresses H’0040 0000 to H’005F FFFF (CS2 area: 2 Mbytes)
Addresses H’0060 0000 to H’007F FFFF (CS3 area: 2 Mbytes)
32180 Group User’s Manual (Rev.1.0)
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RENESAS [ RENESAS TECHNOLOGY CORP ]
