3
3-9
Rev.1.0
ADDRESS SPACE
3.4 Internal RAM and SFR Areas
3.4 Internal RAM and SFR Areas
The 8-Mbyte area in user space addresses from H'0080 0000 to H'00FF FFFF is used for the
internal RAM area and the SFR (Special Function Register) area. Of these, the space that the user
can actually use is a 128-Kbyte area from H'0080 0000 to H'0081 FFFF, and the other addresses
comprise ghost areas in units of 128 Kbytes. (When programming, do not use the ghost area
unless absolutely necessary.)
3.4.1 Internal RAM Area
For the M32172F2, the internal RAM is allocated to addresses H'0080 4000 through H'0080 7FFF
(16 Kbytes). For the M32173F2, the internal RAM is allocated to addresses H'0080 4000 through
H'0080 BFFF (32 Kbytes).
3.4.2 SFR (Special Function Register) Area
Addresses H'0080 0000 to H'0080 3FFF are the SFR (Special Function Register) area. Located in
this area are the internal peripheral I/O registers.
Figure 3.4.1 Internal RAM Area and SFR (Special Function Register) Area of the M32172F2
H'0080 0000
SFR area
(16 Kbytes)
Internal RAM
(16 Kbytes)
H'0080 3FFF
H'0080 4000
H'0080 7FFF
Virtual-flash emulation area
separated in units of 8 Kbytes
can be mapped into this area.
For details, see Section 6.7.
Summary of Contents for 32172
Page 20: ... This is a blank page 16 ...
Page 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Page 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Page 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Page 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Page 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Page 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Page 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Page 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Page 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Page 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...