Changes
/* Internal ROM and MODE0/MODE1 Pins */
|'''MODE1'''||'''MODE0'''||'''Effect'''||'''Example/Usage'''
|-
|LOW||LOW||External ROM, 4K at 0000h..0FFFh (upper 2bit of Port F can be used as I/O signals)||No hardware known to use this
|-
|LOW||HIGH||External ROM, 16K at 0000h..3FFFh (upper 2bit of Port F can be used as I/O signals)||Schneider [[NLQ401]] Printer (uPD7811 with internal ROM disabled)
|-
|HIGH||LOW||'''Internal''' ROM, 4K at 0000h..0FFFh(in this case initialization code in internal ROM can configure Port F usage by software)||Amstrad [[Amstrad/Schneider DMP2000 Printer|DMP2000]]/[[DMP3000|DMP3000]] Printers (uPD7811 with internal ROM enabled)
|-
|HIGH||HIGH||External ROM, 64K at 0000h..FFFFh (all 8bit of Port F used as memory address)||Roland TR-909 Drumcomputer (uPD7811 with internal ROM disabled)
