Extended-SSF mapper description -------cartridge memory map------- 0x000000: BANK0 0x080000: BANK1 0x100000: BANK2 0x180000: BANK3 0x200000: BANK4 0x280000: BANK5 0x300000: BANK6 0x380000: BANK7 ---------Control registers--------- 0xA130F0: [P.WLC... ...RRRRR] CTRL0 0xA130F2: [........ ...RRRRR] CTRL1 0xA130F4: [........ ...RRRRR] CTRL2 0xA130F6: [........ ...RRRRR] CTRL3 0xA130F8: [........ ...RRRRR] CTRL4 0xA130FA: [........ ...RRRRR] CTRL5 0xA130FC: [........ ...RRRRR] CTRL6 0xA130FE: [........ ...RRRRR] CTRL7 P is protection bit. P always should be set for access to the reg 0xA130F0 (CTRL0). Word access only W Memory write protection (0=protected, 1=unprotected) L LED (0=off, 1=on) C #CART signal control. This bit goes directly to the #CART wire. It can map expansion port to the cartridge memory space if set R 512Kbyte bank. 32 banks total Every CTRLx register controls corresponding 512K cartridge BANKx. CTRL0 has extra functions listed above. All registers is write only Mapper supports up to 16Mbyte of memory (32 banks total). Backup ram mapped to the last 31th bank