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S29GL016A90BFER20 Datasheet(PDF) 56 Page - SPANSION |
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S29GL016A90BFER20 Datasheet(HTML) 56 Page - SPANSION |
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56 / 89 page  54 S29GL-A MirrorBit™ Flash Family S29GL-A_00_A3 April 22, 2005 Advan ce In form ati o n Command Definitions Table 30. Command Definitions (x16 Mode, BYTE# = VIH) Command Sequence (Note 1) Bus Cycles (Notes 2–5) First Second Third Fourth Fifth Sixth Read (Note 5) 1 RA RD Reset (Note 6) 1 XXX F0 Manufacturer ID 4 555 AA 2AA 55 555 90 X00 0001 Device ID (Note 8) 6 555 AA 2AA 55 555 90 X01 227E X0E (Note 19) X0F (Note 19) Device ID (Note 9) 4 555 AA 2AA 55 555 90 X01 (Note 18) Secured Silicon Sector Factory Protect 4 555 AA 2AA 55 555 90 X03 (Note 10) Sector Group Protect Verify (Note 11) 4 555 AA 2AA 55 555 90 (SA)X02 00/01 Enter Secured Silicon Sector Region 3 555 AA 2AA 55 555 88 Exit Secured Silicon Sector Region 4 555 AA 2AA 55 555 90 XXX 00 Program 4 555 AA 2AA 55 555 A0 PA PD Write to Buffer (Note 12) 3 555 AA 2AA 55 SA 25 SA WC PA PD WBL PD Program Buffer to Flash 1 SA 29 Write to Buffer Abort Reset (Note 13) 3 555 AA 2AA 55 555 F0 Unlock Bypass 3 555 AA 2AA 55 555 20 Unlock Bypass Program (Note 14) 2 XXX A0 PA PD Unlock Bypass Reset (Note 15) 2 XXX 90 XXX 00 Chip Erase 6 555 AA 2AA 55 555 80 555 AA 2AA 55 555 10 Sector Erase 6 555 AA 2AA 55 555 80 555 AA 2AA 55 SA 30 Program/Erase Suspend (Note 16) 1 XXX B0 Program/Erase Resume (Note 17) 1 XXX 30 CFI Query (Note 18) 1 55 98 Legend: X = Don’t care RA = Read Address of memory location to be read. RD = Read Data read from location RA during read operation. PA = Program Address. Addresses latch on falling edge of WE# or CE# pulse, whichever happens later. PD = Program Data for location PA. Data latches on rising edge of WE# or CE# pulse, whichever happens first. SA = Sector Address of sector to be verified (in autoselect mode) or erased. Address bits A21–A15 uniquely select any sector. WBL = Write Buffer Location. Address must be within same write buffer page as PA. WC = Word Count. Number of write buffer locations to load minus 1. Notes: 1. See Table 4 on page 18 for description of bus operations. 2. All values are in hexadecimal. 3. Shaded cells indicate read cycles. All others are write cycles. 4. During unlock and command cycles, when lower address bits are 555 or 2AA as shown in table, address bits above A11 and data bits above DQ7 are don’t care. 5. No unlock or command cycles required when device is in read mode. 6. Reset command is required to return to read mode (or to erase-suspend-read mode if previously in Erase Suspend) when device is in autoselect mode, or if DQ5 goes high while device is providing status information. 7. Fourth cycle of the autoselect command sequence is a read cycle. Data bits DQ15–DQ8 are don’t care. Except for RD, PD and WC. SeeAutoselect Command Sequence on page 44 for more information. 8. For S29GL064A and S29GL032A, Device ID must be read in three cycles. 9. For S29GL016A, Device ID must be read in one cycle. 10. Refer to Table 15 on page 31 for data indicating Secured Silicon Sector factory protect status. 11. Data is 00h for an unprotected sector group and 01h for a protected sector group. 12. Total number of cycles in command sequence is determined by number of words written to write buffer. Maximum number of cycles in command sequence is 21, including Program Buffer to Flash command. 13. Command sequence resets device for next command after aborted write-to-buffer operation. 14. Unlock Bypass command is required prior to Unlock Bypass Program command. 15. Unlock Bypass Reset command is required to return to read mode when device is in unlock bypass mode. 16. System may read and program in non-erasing sectors, or enter autoselect mode, when in Erase Suspend mode. Erase Suspend command is valid only during a sector erase operation. 17. Erase Resume command is valid only during Erase Suspend mode. 18. Command is valid when device is ready to read array data or when device is in autoselect mode. 19. Refer to Table 15 on page 31, for individual Device IDs per device density and model number. |
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