32182 datasheet(68/755 Pages) RENESAS

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3-9

ADDRESS SPACE

32182 Group User’s Manual (Rev.1.0)

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

Size

Allocation Address

M32182F3

384 Kbytes

H’0000 0000 to H’0005 FFFF

M32182F8

1 Mbyte

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

Single-chip mode

None

External extension mode

H’0010 0000 to H’001F FFFF (CS0 area: 1 Mbyte)

H’0020 0000 to H’003F FFFF (CS1 area: 2 Mbytes)

H’0040 0000 to H’005F FFFF (CS2 area: 2 Mbytes)

H’0060 0000 to H’007F FFFF (CS3 area: 2 Mbytes)

Processor mode

H’0000 0000 to H’001F FFFF (CS0 area: 2 Mbytes)

H’0020 0000 to H’003F FFFF (CS1 area: 2 Mbytes)

H’0040 0000 to H’005F FFFF (CS2 area: 2 Mbytes)

H’0060 0000 to H’007F FFFF (CS3 area: 2 Mbytes)

3.3 Internal ROM and Extended External Areas

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