n25q064 Numonyx, n25q064 Datasheet - Page 105

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n25q064

Manufacturer Part Number
n25q064
Description
64mb 1.8v, Multiple I/o, 4kb Subsector Erase, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
Manufacturer
Numonyx
Datasheet

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N25Q064 - 1.8V
9.3
QIO-SPI Instructions
In QIO-SPI protocol, instructions, addresses and Input/Output data always run in parallel on
four wires: DQ0, DQ1, DQ2 and DQ3 with the already mentioned exception of the modify
instruction (erase and program) performed with the VPP=VPPh.
In the case of a Quad Command Fast Read (QCFR), Read OTP (ROTP), Read Lock
Registers (RDLR), Read Status Register (RDSR), Read Flag Status Register (RFSR), Read
NV Configuration Register (RDNVCR), Read Volatile Configuration Register (RDVCR),
Read Volatile Enhanced Configuration Register (RDVECR), Read Serial Flash Discovery
Parameter (RDSFDP), and Multiple I/O Read Identification (MIORDID) instruction, the
shifted-in instruction sequence is followed by a data-out sequence. Chip Select (S) can be
driven High after any bit of the data-out sequence is being shifted out.
In the case of a Quad Command Page Program (QCPP), Program OTP (POTP), Subsector
Erase (SSE), Sector Erase (SE), Bulk Erase (BE), Program/Erase Suspend (PES),
Program/Erase Resume (PER), Write Status Register (WRSR), Clear Flag Status Register
(CLFSR), Write to Lock Register (WRLR), Write Configuration Register (WRVCR), Write
Enhanced Configuration Register (WRVECR), Write NV Configuration Register (WRNVCR),
Write Enable (WREN) or Write Disable (WRDI) instruction, Chip Select (S) must be driven
High exactly at a byte boundary, otherwise the instruction is rejected, and is not executed.
All attempts to access the memory array during a Write Status Register cycle, a Write Non
Volatile Configuration Register, a Program cycle or an Erase cycle are ignored, and the
internal Write Status Register cycle, Write Non Volatile Configuration Register, Program
cycle or Erase cycle continues unaffected, the only exception is the Program/Erase
Suspend instruction (PES), that can be used to pause all the program and the erase cycles
but the Program OTP (POTP),, Bulk Erase (BE) and Write Non Volatile Configuration
Register. The suspended program or erase cycle can be resumed by mean of the
Program/Erase Resume instruction (PER). During the program/erase cycles also the polling
instructions (to check if the internal modify cycle is finished by mean of the WIP bit of the
Status Register or of the Program/Erase controller bit of the Flag Status register) are also
accepted to allow the application checking the end of the internal modify cycles, of course
these polling instructions don't affect the internal cycles performing.
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2010 Micron Technology, Inc. All rights reserved.
Instructions
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