DescriptionAddress Lines & Values (Note 1)System AddressSA11SA10SA9SA8SA7SA6SA5SA4SA3SA2SA1SA0x8-only Flash (Note 2)A11A10A9A8A7A6A5A4A3A2A1A0x8/x16 FlashByte Mode (Note 2)A10A9A8A7A6A5A4A3A2A1A0A-1x8/x16 FlashWord Mode (Note 3)A10A9A8A7A6A5A4A3A2A1A0System Binary Address101010101010Flash Hex Address(x8/x16 device in word mode)555Flash Hex Address (x8-only device or x8/x16 device in byte mode) AAA4Connecting AMD Flash Memory to a System Address Busacters (refer to Table 2, second row from bottom).When used in word mode, the devices least significantaddress A0 is connected to the SA1 address line. Thisis why a Flash device command table shows a differentaddress pattern for x8/x16 Flash devices depending onwhether byte or word mode is in use. These commandtables are always defined from the viewpoint of theFlash devices address bus.Table 3 lists the Flash Command Definitions table forthe Am29LV800B Flash Device.Table 3.Am29LV800B Command DefinitionsFor each command listed in Table 3, ther datasheet to know which address lines do not requirethe hex pattern. However, placing the pattern on all theaddress pins has no effect on address bits that aredont care.Handling Bank, Sector, and Programming OffsetsIn certain commands, a bank, sector, or programmingoffset address must be given in order for the commandto correctly begin. Flash address bits above A10 areused for these purposes.Bank addresses (listed as BA in AMD data sheets)are used in the AMD DL (Simultaneous Read-Write)devices to uniquely identify one of two specific banks.For example, the Am29DL800B data sheet specifiesthat address bits A16 through A18 uniquely select aspecific bank. For larger density devices, Flash ad-dress bits A16 through the MSB of the Flash deviceuniquely identify a bank.Sector Addresses (SA in AMD data sheets) are usedfor sector specific Flash operations (such as SectorErase and Sector Protect Verify). Address bits fromA12 to the MSB are used to uniquely specify a sector.The Program Address Off 2Connecting AMD Flash Memory to a System A