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6-43
Ver.0.10
INTERNAL MEMORY
6.7 Virtual Flash Emulation Function
6.7 Virtual Flash Emulation Function
The 32170 has a special function, called the "Virtual Flash Emulation Function," which allows the
internal RAM to be mapped in blocks of 8 Kbytes from the beginning (up to four blocks for the
M32170F6, up to three blocks for the M32170F4 and M32170F3) into the internal flash memory
area divided in units of 8 Kbytes (L banks). Similarly, this function allows the internal RAM to be
mapped in blocks of 4 Kbytes, for the M32170F6 (up to two blocks) starting from the RAM address
H'0080 C000, for the M32170F4 and M32170F3 (up to two blocks) starting from the RAM address
H'0080 A000 into the internal flash memory area divided in units of 4 Kbytes (S banks).
When this function is used, the data placed in 8 Kbyte or 4 Kbyte blocks of internal RAM can be
moved to or from the L or S banks in the flash memory that are specified by the Virtual Flash Bank
Register. For applications that require modifying data during program operation, this enables
dynamic modification of data using 8 Kbytes or 4 Kbytes of RAM areas. The RAM blocks allocated
for virtual flash emulation can be read or written to from both internal RAM and internal flash
memory areas. This function, when used in combination with the Real-Time Debugger (RTD),
permits you to look up or rewrite from outside the data tables created in the internal flash memory,
thus facilitating data table tuning from an external device.
Before accessing the internal flash memory for programming, be sure to terminate this virtual flash
emulation mode.
Figure 6.7.1 Internal RAM Bank Configuration of the M32170F6
RAM bank L block 0
(FELBANK0)
8 Kbytes
H'0080 4000
H'0080 6000
H'0080 8000
H'0080 A000
H'0080 C000
H'0080 D000
RAM bank L block 1
(FELBANK1)
8 Kbytes
RAM bank L block 2
(FELBANK2)
8 Kbytes
RAM bank L block 3
(FELBANK3)
8 Kbytes
RAM bank S block 0
(FESBANK0)
4 Kbytes
RAM bank S block 1
(FESBANK1)
4 Kbytes
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 ...