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Memory Map

The operating mode determines memory mapping and whether memory is addressed on- or off-chip. Memory locations for on-chip resources are the same for both expanded multiplexed and single-chip modes. Control bits in the CONFIG register allow EPROM and EEPROM to be disabled from the memory map. The 512-byte RAM is mapped to $0000 after reset. It can be placed at any other 4K boundary ($x000) by writing an appropriate value to the INIT register. The 64-byte register block is mapped to $1000 after reset and can also be placed at any 4K boundary($x000) by writing an appropriate value to the INIT register. The Table for MCU register and control bit assignments can be looked up from the Technical Data Manual.



Matanya Elchanani
Wed Dec 18 17:00:21 EST 1996