Motore di ricerca datesheet componenti elettronici |
|
GD25B257D Scheda tecnica(PDF) 58 Page - GigaDevice Semiconductor (Beijing) Inc. |
|
GD25B257D Scheda tecnica(HTML) 58 Page - GigaDevice Semiconductor (Beijing) Inc. |
58 / 92 page 3.3V Uniform Sector Dual and Quad Serial Flash GD25B257D 58 8.25. Enter 4-Byte Address Mode (B7H) The Enter 4-Byte Address Mode command enables accessing the address length of 32-bit for the memory area of higher density (larger than 128Mb). The device default is in 24-bit address mode; after sending out the EN4B instruction, the bit8 (ADS bit ) of status register will be automatically set to “1” to indicate the 4-Byte address mode has been enabled. Once the 4-Byte address mode is enabled, the address length becomes 32-bit instead of the default 24-bit. All instructions are accepted normally, and just the address bit is changed from 24-bit to 32-bit. The sequence of issuing EN4B instruction is: CS# goes low sending Enter 4-Byte mode command CS# goes high. Figure 61. Enter 4-Byte Address Mode Sequence Diagram 8.26. Exit 4-Byte Address Mode (E9H) The Exit 4-Byte Address Mode command is executed to exit the 4-Byte address mode and return to the default 3-Byte address mode. After sending out the EX4B instruction, the bit8 (ADS bit) of status regis ter will be cleared to “0” to indicate the exit of the 4-Byte address mode. Once exiting the 4-Byte address mode, the address length will return to 24-bit. The sequence of issuing EN4B instruction is: CS# goes low sending Exit 4-Byte Address Mode command CS# goes high. Figure 62.Exit 4-Byte Address Mode Sequence Diagram Command 0 1 2 3 4 5 6 7 B7H CS# SCLK SI SO High-Z Command 0 1 2 3 4 5 6 7 E9H CS# SCLK SI SO High-Z |
Codice articolo simile - GD25B257D |
|
Descrizione simile - GD25B257D |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |