The Intel D1000 MCU datasheet says:
The MCU has 4 kB of data flash and 32 kB of code flash. Code flash occupies the address range 0x2000 0000 to 0x3FFF FFFF and is aliased throughout. It is accessible from both 128-bit code and 32-bit data busses. Data flash occupies the address range 0x4000 0000 to 0x5FFF FFFF and is aliased throughout.
The size of the address space is:
0x2000 0000 ~ 0x3FFF FFFF = 512M Bytes
0x4000 0000 ~ 0x5FFF FFFF = 512M Bytes
But the datasheet says the MCU has only 4kB data flash and 32kB code flash. Why the address space is so big and the physical size is so small? Does it mean that only the first 4kB or 32kB of the big address space can be used?
And what does aliased mean?