You said hit delete on schematics having 8255. Whats the alternative to 8255 as a lot of designs need more ports than a 8051 has.
The 8255 belong either in an antique shop or in the little shop of horrors, you choose

O how do I know, let me count the ways in order of my preference

1) use a manypin chip such a Cygnal F124 which has 8 8-pin ports
2) use a CPLD, there you can do all kinds of tricks and since it will include the address latch it will not increase your chip count.
3) use a PSD chip - as opposed to the 8255 which is designed for the x86, the PSD chips are designed for the '51
4) IIC interface to chips such as the PCF8574 or others
http://forums.semiconductors.philips.com/selection...41735.html
5) discrete logic, a few decoders a few gates, a few latches.

I am sure there are more options, these are what comes to the top of my head.

Erik