[En-Nut-Discussion] Mapped memory extension

[Harald Kipp]

Martin,

>0x8000 - 0xB7FF:    memory mapped I/O (e.g. Ethernet controller), 
>segmented in 8 x 2kb regions

The advantage of moving memory mapped I/O to upper addresses
is, that you can specify additional wait states for this
region.

>Are there any 512k RAM chips in standard DIL package (easier to solder) ?

There are. In Germany you may check Reichelt. But manually
soldering  SOIC is really easy, even for newbies. Important:
Use a lot of flux.

Harald