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
*
Содержание M32170F3VFP
Страница 19: ...CHAPTER 1 CHAPTER 1 OVERVIEW 1 1 Outline of the 32170 1 2 Block Diagram 1 3 Pin Function 1 4 Pin Layout ...
Страница 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Страница 56: ...2 2 14 Ver 0 10 This is a blank page ...
Страница 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Страница 192: ...6 6 58 Ver 0 10 INTERNAL MEMORY 6 9 Precautions to Be Taken When Rewriting Flash Memory This is a blank page ...
Страница 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Страница 498: ...10 10 228 Ver 0 10 MULTIJUNCTION TIMERS 10 9 TOM Output related 16 bit Timer This is a blank page ...
Страница 550: ...11 11 52 Ver 0 10 A D CONVERTERS 11 4 Precautions on Using A D Converters This is a blank page ...
Страница 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Страница 710: ...14 14 16 Ver 0 10 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 746: ...16 16 20 Ver 0 10 WAIT CONTROLLER 16 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 757: ...CHAPTER 18 CHAPTER 18 OSCILLATION CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit ...
Страница 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Страница 798: ...19 19 36 Ver 0 10 JTAG 19 6 Precautions about Board Design when Connecting JTAG This is a blank page ...
Страница 830: ...21 21 24 Ver 0 10 PRELIMINARY PRELIMINARY This is a blank page ELECTRICAL CHARACTERISTICS 21 5 AC Characteristics ...
Страница 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Страница 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 837: ...Appendix 2 1 32170 Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...