164
CHAPTER 9 MEMORY ACCESS MODES
9.1
Outline of Memory Access Modes
In the F
2
MC-16LX, the following two memory access modes are provided for each of the
access methods and access areas:
• Operation mode
• Bus mode
■
Memory access Modes
For the MB90390 Series, the external bus function is not supported. Therefore the following part of this
document is not fully supported. In user applications, please use the MB90390 Series in the single chip
mode.
To set the MB90390 Series into the single chip mode, the mode inputs (MD2 to MD0) should be "011
B
"
and the most significant two bits of the mode data (M1 and M0) should be "00
B
".
●
Operation mode
Operation mode means the mode for controlling the device operation status. The operation mode is
specified by the MDx mode setting pin and the Mx bit in mode data.
●
Bus mode
Bus mode means the mode for controlling the built-in ROM operation and external access function. The
bus mode is specified by the MDx mode setting pin and the Mx bit in mode data. The MDx mode setting
pin specifies the bus mode for reading the reset vector and mode data, and the Mx bit in mode data
specifies the bus mode for normal operation.
Operation mode
Bus mode
Single chip
RUN
Flash programming
Содержание MB90390 Series
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Страница 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
Страница 18: ...xiv ...
Страница 132: ...104 CHAPTER 5 CLOCKS ...
Страница 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Страница 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Страница 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Страница 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Страница 274: ...246 CHAPTER 15 WATCH TIMER ...
Страница 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Страница 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 364: ...336 CHAPTER 19 UART0 UART1 ...
Страница 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Страница 432: ...404 CHAPTER 20 UART2 UART3 ...
Страница 482: ...454 CHAPTER 22 SERIAL I O ...
Страница 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Страница 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Страница 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
Страница 722: ...694 APPENDIX ...
Страница 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
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