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S71GS256 Datasheet(PDF) 81 Page - SPANSION |
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S71GS256 Datasheet(HTML) 81 Page - SPANSION |
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81 / 195 page  December 15, 2004 S29GLxxxN_MCP_A1 S29GLxxxN MirrorBitTM Flash Family 81 Ad vance Info rmat i o n Legend: X = Don’t care RA = Address of the memory to be read. RD = Data read from location RA during read operation. PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the WE# or CE# pulse, whichever happens later. PD = Data to be programmed at location PA. Data latches on the rising edge of the WE# or CE# pulse, whichever happens first. SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits Amax–A16 uniquely select any sector. WBL = Write Buffer Location. The address must be within the same write buffer page as PA. Password Protection Command Set Entry 3 555 AA 2AA 55 555 60 Password Program (20) 2 XXX A0 PWA x PWD x Password Read (19) 4 XXX PWD 0 01 PWD 1 02 PWD 2 03 PWD 3 Password Unlock (19) 7 00 25 00 03 00 PWD 0 01 PWD 1 02 PWD 2 03 PWD 3 00 29 Password Protection Command Set Exit (18, 23) 2 XXX 90 XXX 00 Non-Volatile Sector Protection Command Set Definitions Nonvolatile Sector Protection Command Set Entry 3 555 AA 2AA 55 555 C0 PPB Program (24, 25) 2 XXX A0 SA 00 All PPB Erase 2 XXX 80 00 30 PPB Status Read (25) 1 SA RD (0) Non-Volatile Sector Protection Command Set Exit (18) 2 XXX 90 XXX 00 Global Non-Volatile Sector Protection Freeze Command Set Definitions Global Non-Volatile Sector Protection Freeze Command Set Entry 3 555 AA 2AA 55 555 50 PPB Lock Bit Set (25) 2 XXX A0 XXX 00 PPB Lock Status Read (25) 1 XXX RD (0) Global Non-Volatile Sector Protection Freeze Command Set Exit (18) 2 XXX 90 XXX 00 Volatile Sector Protection Command Set Definitions Volatile Sector Protection Command Set Entry 3 555 AA 2AA 55 555 E0 DYB Set (24, 25) 2 XXX A0 SA 00 DYB Clear (25) 2 XXX A0 SA 01 DYB Status Read (25) 1 SA RD (0) Volatile Sector Protection Command Set Exit (18) 2 XXX 90 XXX 00 Command (Notes) Bus Cycles (Notes 2–5) First Second Third Fourth Fifth Sixth Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data |
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