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IS25LE01G-RILA3 数据表(PDF) 34 Page - Integrated Silicon Solution, Inc |
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IS25LE01G-RILA3 数据表(HTML) 34 Page - Integrated Silicon Solution, Inc |
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34 / 186 page  IS25LE01G IS25WE01G Integrated Silicon Solution, Inc.- www.issi.com 34 Rev. A6 01/14/2025 6.5 BANK ADDRESS REGISTER Related Commands: Read Volatile Bank Address Register (RDBR 16h/C8h), Write Volatile Bank Address Register (WRBRV 17h/C5h), Write Non-Volatile Bank Address Register (WRBRNV 18h), Enter 4-byte Address Mode (EN4B B7h), and Exit 4-byte Address Mode (EX4B 29h). Bank Address Register Bit (8 bits) definitions are described in Table 6.17 and Table 6.18. Table 6.16 Bank Address Register Bit Table BA7 BA6 BA5 BA4 BA3 BA2 BA1 BA0 EXTADD Reserved Reserved Reserved Reserved BA26 BA25 BA24 Default 0 0 0 0 0 0 0 0 Table 6.17 Bank Address Register Bit Definition Bit Name Definition Read- /Write Type BA0 BA24 Enables 128Mb segment selection in 3-byte addressing 1Gb : BA24, BA25 and BA26 R/W Non-Volatile and Volatile BA1 BA25 BA2 BA26 BA3 Reserved Reserved R Reserved BA4 Reserved Reserved R Reserved BA5 Reserved Reserved R Reserved BA6 Reserved Reserved R Reserved BA7 EXTADD 3-byte or 4-byte addressing mode selection Bit: "0" indicates 3-byte addressing mode "1" indicates 4-byte addressing mode R/W Non-Volatile and Volatile BA24, BA25, BA26: The Bank Address Register supplies additional high order bits of the main flash array byte boundary address for legacy commands based systems, which supply only the low order 24 bits of address. The Bank Addresses are used as the high bits of address (above A23) for legacy 3-byte address commands when EXTADD=0. The Bank Address is not used when EXTADD = 1 and traditional 3-byte address commands are instead required to provide all four bytes of address. EXTADD: Extended Address (EXTADD) controls the address field size for legacy SPI commands. When shipped from factory , it is cleared to “0” for 3-byte addressing mode. When set to “1” for 4-byte addressing mode, the legacy commands will require 4 bytes of address for the address field |
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