15
15-14
Ver.0.10
Figure 15.4.1 Typical Connection of External Extension Memory (When BUSMOD = 0)
Note : The 32170 addresses and data are arranged in such a way that bit 0 = MSB, and bit 15 =
LSB. Therefore, the MSB and LSB sides must be reversed when connecting external
extension memory.
EXTERNAL BUS INTERFACE
15.4 Typical Connection of External Extension Memory
15.4 Typical Connection of External Extension Memory
(1) When Bus Mode Control Register = 0
A typical connection when using external extension memory is shown in Figure 15.4.1. (External
extension memory can only be used in external extension mode and processor mode.)
Memory mapping
Internal flash memory
(768KB)
External
memory area
(1MB)
A
A
A
A
A
A
Number of bus wait cycles can be set to 1-4.
Normally used as port. WAIT is used only when four or more wait cycles are needed.
H'0000 0000
H'0040 0000
H'0020 0000
H'000C 0000
Unused
H'0010 0000
1M-CS0 area
SRAM
Flash memory
A18
A0
A
A
D15
D0
A
A
RD
CS
max1MB
A18
A0
A
A
D15
D0
A
A
RD (D0-D15)
CS
WR (D0-D7)
WR (D8-D15)
max1MB 2
(total2MB)
32170F6
A11
A30
A
A
D0
D15
A
A
RD
CS0
CS1
BLW
BHW
WAIT
External
memory area
(2MB)
2M-CS1 area
*
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...