32182 datasheet(69/755 Pages) RENESAS

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3-10

ADDRESS SPACE

3.4 Internal RAM and SFR Areas

32182 Group User’s Manual (Rev.1.0)

3.4 Internal RAM and SFR Areas

The 8-Mbyte area from the address H’0080 0000 to the address H’00FF FFFF comprise the internal RAM and

SFR (Special Function Register) areas. Of these, the space that the user can actually use is a 128-Kbyte area

from the address H’0080 0000 to the address H’0081 FFFF. The other areas here are ghosts in 128-Kbyte units.

(Do not use the ghost area intentionally during programming.)

3.4.1 Internal RAM Area

The internal RAM area is allocated to the addresses shown below.

Table 3.4.1 Internal RAM Allocation Address

Type Name

Size

Allocation Address

M32182F3

64 Kbytes

H’0080 4000 to H’0081 3FFF

M32182F8

64 Kbytes

H’0080 4000 to H’0081 3FFF

3.4.2 SFR (Special Function Register) Area

The addresses H’0080 0000 to H’0080 3FFFF comprise the SFR (Special Function Register) area. Located in

this area are the internal peripheral I/O registers.

Figure 3.4.1 Internal RAM and SFR (Special Function Register) Areas of the M32182F3

SFR area

(16 Kbytes)

H'0080 0000

H'0080 3FFF

H'0080 4000

H'0080 FFFF

H'0080 7FFF

H'0080 8000

H'0081 0000

H'0081 3FFF

Internal RAM

(64 Kbytes)

Virtual flash emulation areas

separated in 4-Kbyte units

can be allocated here.

For details, see Section 6.6.

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