Changes
/* Register RMR2 (ASIC & Advanced ROM mapping) */
| 5 || 1
|-
| 4 || x || rowspan="2" |Lower ROM address and ASIC I/O page RMR addressing mode
|-
| 3 || x
|}
The physical ROMs are also accessible as upper ROMs by using the [[Upper ROM Bank Number]] port and the RMR register.
