Is all of the 4kb internal ROM on Intel MCS-51 available for user code? Are there any system routines that might take up some of the space? I managed to optimize my code to 4091b and I'd really like to know whether I need to optimize it further.
Thanks.
So Assuming you could get one... Yes the Intel 8051 chip is 4K and holds 4096 bytes. Addressed 0 to 4095, and is ROM The Intel 8751 had EEPROM, and was available with a window. Those Parts where erasable.
No!
It had UV-EPROM!
"was available with a window"
To let the UV light in.
"Those Parts where erasable"
Yes - but not electrically eraseable!
Sorry about, that I stuttered The Intel 8751 had EPROM.