code banking on 8051

[spotato]

Anyone have a sample circuit for 8051 Bank-Switching , or any related link
are welcome.
Thank you !

 

[The real Andy]

A few i/o lines to a bin to decimal decoder chip which is then connected to
the eprom/flash chip enable lines. Then write some code to calculate
branches, if branching to an address space in a different rom, toggle i/o
lines accordingly. Easy. BTW, you may want to add a few wait states when
switching, depending on the speed of the rom.