128-Kbyte Addressing with the M68HC11 Application Note
■The maximum direct addressing capability of the M68HC11 device is 64 Kbytes, but this can be insufficient for some applications. This application note describes two methods of memory paging that allow the MCU to fully address a single 1 megabit EPROM (128 Kbytes) by manipulation of the address lines. The two methods illustrate the concept of paging and the inherent compromises. The technique may be expanded to allow addressing of several EPROM, RAM, or EEPROM memories, or several smaller memories by using both address lines and chip enables.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2006/5/6 |
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AN432 |
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847 KB |
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