UB2 is a 2048 x 8 bit RAM. UB2 resides at memory locations $0000-$07FF. This memory is used for processor stack operations, general processor housekeeping, use program storage, and 4 temporary buffer areas. UC5, UC6 and UC7 decode the addresses output from the processor when selecting RAM.
This page has been created by Sami Rautiainen. | |
Read the small print. | Last updated September 05, 2020. |