Numonyxâ„¢ Wireless Flash Memory (W30)

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Table 26: Simultaneous Operations Allowed with the Protection Register Protection Register Read See Description Parameter Partition Array Data See Description Main Partitions Write/Erase Read Write/Erase Read Read Write/Erase Write No Access Allowed No Access Allowed Read Write/Erase Read 13.2.1 Reading the Protection Register Numonyx Wireless Flash Memory (W30) (W30) Writing the Read Identifier command allows the protection register data to be read 16 bits at a time from addresses shown in Table 20, “Flash Device Identification Codes” on page 55. The protection register is read from the Read Identifier command, and can be read in any partition.Writing the Read Array command returns the flash device to readarray mode. 13.2.2 Programing the Protection Register Issue the Protection Program command only at the parameter partition followed by the data to be programmed at the specified location. This command programs the upper 64 bits of the protection register 16 bits at a time. Table 20, “Flash Device Identification Codes” on page 55 shows allowable addresses. See also Figure 35, “Protection Register Programming Flowchart” on page 77. Issuing a Protection Program command outside the address space of the register results in a status register error (SR[4]=1). 13.2.3 Locking the Protection Register Description While programming or erasing in a main partition, the protection register can be read from any other partition. Reading the parameter partition data is not allowed if the protection register is being read from addresses within the parameter partition. While programming or erasing in a main partition, read operations are allowed in the parameter partition. Accessing the protection registers from parameter partition addresses is not allowed. While programming or erasing in a main partition, read operations are allowed in the parameter partition. Accessing the protection registers is allowed, but only in a partition that is different from the partition being programmed or erased, and also different from the parameter partition. While programming the protection register, reads are allowed only in the other main partitions. Access to the parameter partition is not allowed, because programming of the protection register can occur only in the parameter partition, so that the parameter partition exists in status mode. While programming or erasing the parameter partition, reads of the protection registers are not allowed in any partition. Reads in other main partitions are supported. • PR-LK.0 is programmed to 0 by Numonyx to protect the unique flash device number. • PR-LK.1 can be programmed by the user to lock the user portion (upper 64 bits) of the protection register (See Figure 36, “Protection Register Locking). This bit is set using the Protection Program command to program a value of FFFDh into PR-LK. After PR-LK register bits are programmed (locked), the stored values in the protection register cannot be changed. Protection Program commands written to a locked section result in a status register error (SR[4]=1, SR[5]=1). Datasheet November 2007 76 Order Number: 290702-13
Numonyx Wireless Flash Memory (W30) . Figure 35: Protection Register Programming Flowchart Start Write C0h Addr=Prot addr Write Protect. Register Address / Data Read Status Register SR[7] = 1? Yes Full Status Check (if desired) Program Complete Read SRD SR[4:3] = SR[4,1] = SR[4,1] = Program Successful No 1,1 1,0 1,1 PROTECTION REGISTER PROGRAMMING PROCEDURE V PP Range Error Programming Error Locked-Register Program Aborted Bus Command Comments Operation Protection Program operations addresses must be within the protection register address space. Addresses outside this space will return an error. Repeat for subsequent programming operations. Full status register check can be done after each program or after a sequence of program operations. FULL STATUS CHECK PROCEDURE Bus Operation Command Standby Standby Comments SR[1] SR[3] SR[4] 0 1 1 V PP Error 0 0 1 Protection register program error SR[3] MUST be cleared before the WSM will allow further program attempts. Only the Clear Staus Register command clears SR[4:3,1]. If an error is detected, clear the status register before attempting a program retry or other error recovery. November 2007 Datasheet Order Number: 290702-13 77 Write Write Read Standby Standby Protection Program Setup Protection Program Data = C0h Addr = Protection address Data = Data to program Addr = Protection address Read SRD Toggle CE# or OE# to update SRD Check SR[7] 1 = WSM Ready 0 = WSM Busy 1 0 1 Register locked; Operation aborted
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Legal Lines and Disclaimers INFORMA
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Numonyx Wireless Flash Memory (W30)
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Date of Revision 11/17/03 -008 Vers
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• RWE - Read-While-Erase • RWW
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Table 2: Top Parameter Memory Map M
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Figure 2: 32Mb, 64Mb and 128Mb QUAD
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Figure 4: 32Mb VF BGA Package Drawi
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4.0 Ballout and Signal Descriptions
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4.2 Signal Descriptions Numonyx Wir
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Table 6: Signal Descriptions - QUAD
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Page 26 and 27: 6.0 Electrical Specifications 6.1 D
Page 28 and 29: 7.0 AC Characteristics 7.1 Read Ope
Page 30 and 31: Table 12: Read Operations - 180 nm
Page 32 and 33: Figure 9: Latched Asynchronous Read
Page 34 and 35: Figure 11: Single Synchronous Read-
Page 36 and 37: Numonyx Wireless Flash Memory (W30)
Page 38 and 39: Figure 15: Burst Suspend CLK Addres
Page 40 and 41: Figure 16: Write Operations Wavefor
Page 42 and 43: Figure 19: Synchronous Read to Writ
Page 44 and 45: 8.0 Power and Reset Specifications
Page 46 and 47: 8.6 Reset Specifications Table 15:
Page 48 and 49: 9.0 Flash Device Operations Numonyx
Page 50 and 51: 9.1.4 Reset 9.1.5 Write Numonyx Wir
Page 52 and 53: Table 18: Command Codes and Descrip
Page 54 and 55: Figure 26: Interleaving a 2-Cycle W
Page 56 and 57: Table 20: Flash Device Identificati
Page 58 and 59: 10.5 Clear Status Register Numonyx
Page 60 and 61: Figure 28: Word Program Flowchart S
Page 62 and 63: 11.3.2 Setup Numonyx Wireless Flash
Page 64 and 65: Figure 29: Enhanced Factory Program
Page 72 and 73: Figure 33: Block Locking State Diag
Page 78 and 79: Figure 36: Protection Register Lock
Page 80 and 81: Table 28: Read Configuration Regist
Page 86 and 87: Appendix A Write State Machine Numo
Page 90 and 91: B.2 Query Structure Overview Numony
Page 92 and 93: Table 37: System Interface Informat
Page 94 and 95: B.6 Numonyx-Specific Extended Query
Page 96 and 97: Table 43: Partition Region 1 Inform
Page 98 and 99: Table 45: Partition and Erase-Block
Page 100 and 101: Table 47: 48F Type Stacked Componen
Page 102: Table 51: Parameter / Mux Configura
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Numonyxâ„¢ Wireless Flash Memory (W30)

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