ISSI is a technology leader that designs, develops, and markets high performance integrated circuits for the automotive, communications, digital consumer, and industrial and medical market. SPI-NOR Flash Hardware • Flash is composed of Sectors and Pages • Smallest erasable block size is called Sector –May be 4/32/64/256 KB • Sectors sub-divided into Pages –May be 256/512 bytes –Flash program is usually in page size chunks (though not necessary) Typical applications include Secure Digital cards and liquid crystal displays. over SPI NOR KIOXIA’s Serial NAND is SLC NAND with a serial peripheral interface (SPI). Latest Research Report on Serial (SPI) NOR Flash Market which covers Market Overview, Future Economic Impact, Competition by Manufacturers, Supply (Production), and Consumption Analysis “Global Serial (SPI) NOR Flash Industry: with growing significant CAGR during Forecast 2020-2028. NOR flash, with the proper features, can execute in place for board bring-up. For example, for FlexSPI NOR on RT1052, the IVT must start at address 0x60001000 (start address is 0x6000_0000, IVT offset is 0x1000). I don't know how to do that. The Hyper Flash is the default Flash. NOR Flash provided by Winbond. I use the jedec-nor-spi dtoverlay so its available as MTD.. The Flash product family devices supported by our partners are as follows: Parallel NOR family’s: The GL-S (65nm) and GL-T (45nn), Older Parallel NOR family's such as GL-P, PL-J, AL-J and AS-J are supported, but you will need go to Programmer website for details. This means that data can be transferred in both directions at the same time. Due to its compatibility with the widely used Serial Peripheral Interface (SPI), Toshiba’s Serial NAND is an ideal NOR flash replacement in consumer and industrial applications. If you’re looking for small-footprint, low-power, and cost-effective serial NOR Flash memory, one of our solutions is the right choice for your next design. Size of flash available in a given form factor can be a large differentiator also. Another feature used in serial NOR Flash to further enhance throughput is Double Data Rate (DDR) signaling. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or Flash memory is a type of non-volatile storage that is electrically eraseable and rewriteable. Our industry-standard devices are easy to design in, saving valuable development time while ensuring compatibility with … spi flash 和 Nor flash 区别. In NOR flash memory every memory cell is connected to the floating gate. Issues and Workarounds. In a computer, a serial peripheral interface (SPI) is an interface that enables the serial (one bit at a time) exchange of data between two devices, one called a master and the other called a slave . The bootloader doesn't support booting from USB3 or NVMe before and there are tools missing to write to SPI flash easily. The density of 90nm NOR Flash ranges from 512Kb to 8Mb, and the density of 58nm NOR Flash ranges from 16Mb to 2Gb. Available in … In NAND Flash, several memory cells (typically eight cells) are connected in series similar to a NAND gate (see Figure 1). Wear leveling - both static and dynamic - maximize the lifetime of the flash. SPI NOR flash is quite common as boot media. Still it is an open question whether any bad blocks may appear over time on some fraction of devices (if anyone has any relevant references, please add them here). (depicted below). Read the full announcement. The common wisdom is that Serial flash cannot read as fast as parallel solutions. SPI NAND flash requires less error correction and usually has the ECC engine built into the die, resulting in a faster correction process. I strongly advocate that the SPI Flash should be treated as equal as the NAND Flash/MCI(but not NOR Flash, which could not … -Dona Allen, Intel Software 3rd Party Manager, Intel Corporation. Regardless of the form factor your design ends up with, both raw NAND and NOR flash need software to handle this media. For boot devices, this slight difference can be a big factor. 16 Mbit SPI NOR Flash are available at Mouser Electronics. Having a doubt in steps 5 where it tells us to use gel file. Once thought to be in decline, raw flash media is definitely on the rise in embedded designs. and then used NOR flash writer, to dump the .ccs file into SPI NOR flash. Last (but never least), performance can be customized to match customer requirements while providing the best reliability for the file system. SPI flash modules are handy because they’re low cost and have a small footprint. SPI NOR Flash GigaDevice SPI NOR Flash delivers the high-performance and security features necessary to meet the diverse design requirements of today’s applications. The Serial Peripheral Interface (SPI) is a synchronous serial communication interface specification used for short-distance communication, primarily in embedded systems. We also offer backward-compatible, high-performance Serial NOR Flash, MXSMIO ® (Multi-I/O) family and MXSMIO ® Duplex (DTR) family. Most offerings promise 20 years of data retention, which is excellent for boot code which is rarely (if ever) rewritten. Mouser offers inventory, pricing, & datasheets for 16 Mbit SPI NOR Flash. © 2020 Integrated Silicon Solution Inc. All Rights Reserved. NOR Flash, on the other hand, are shipped with zero bad blocks with very low bad block accumulation during the life span of the memory. The quiescent current of Zbit Semiconductor,Inc. The industry standard Quad SPI (Serial Peripheral Interface) interface is simple to use and is supported by virtually all modern chipsets. SPI NOR Flash(车规) 与消费电子不同,汽车行业的电子器件需满足更为严苛的AEC-Q100车规标准要求。 兆易创新GD25 SPI NOR Flash已通过AEC-Q100认证,是目前唯一的全国产化车规闪存产品。 The size of the storage media can be a huge differentiating factor. Contents SPI-NOR Flash Hardware • Flash is composed of Sectors and Pages • Smallest erasable block size is called Sector –May be 4/32/64/256 KB • Sectors sub-divided into Pages –May be 256/512 bytes –Flash program is usually in page size chunks (though not necessary) MX25Lxxx Serial NOR Flash memory (SPI/QSPI) MX66Lxxx Serial NOR Flash memory (SPI/QSPI) Micron Technology. 128Mbit S25FL128S MirrorBit ® Flash Non-Volatile Memory (SPI/QSPI) M25P Series SPI Serial Flash memory (SPI) M45PE Series SPI Serial Flash memory (SPI) P5Q Serial Phase Change Memory (SPI/QSPI) N25Q Serial NOR Flash memory (SPI/QSPI) Spansion. High density (128Mb – 512Mb) HyperFlash NOR Flash memories deliver the performance required for the highest-performance embedded systems found in automotive advanced driver assistance systems (ADAS), automotive instrument cluster, automotive infotainment systems, networking routers and switches and high definition set-top boxes. Integrated chips like Systems-on-Chip can include flash memory on the chip and remove the need for an external memory chip and the interface to access the external memory. Both NOR and NAND flash are available in both packages. SPI NOR family’s the FL-S (3.0V) and FS-S (1.8V) 65nm Mirrorbit. Flash memory architecture based on floating gate technology. This makes NAND flash memory cheaper in terms of cost per volume. Solder manually. I Set 400Mhz as SPI kernel Clock, and my Prescaler value at 8. Also they have much lower data density than NAND and are sold without bad blocks. We use cookies to ensure you have the best experience on our site. The bootstrap pins have been configured to SPI boot device mode (exactly like on the EVM). Another aspect of reliability is data retention, where NOR Flash … This brief article mentions a few of these, comparing the two options. Parallel vs. Winbond is the worldwide leading NOR Flash supplier. Most offerings promise 20 years of data retention, which is excellent for boot code which is rarely (if ever) rewritten. NOR offers faster read speed and random access capabilities, making it suitable for code storage in … If the SPI controller has an execute-in-place (XIP) feature, NOR flash can boot the system without copying the code to DRAM, as is required with NAND flash. Cypress' closest suggested migration path from N25Q is S25FL-L/S25FL-S. 2.1 EVK settings 1. Re: about QSPI NOR Flash spec ShupingZ_76 Mar 25, 2020 11:06 PM ( in response to keni_4440091 ) The SPI clock frequency depends on the MCU and should not exceed the maximum frequency specified in the datasheet. NAND and NOR flash memory are both sold as external memory chips that are accessed by an MCU via an interface, which is most often SPI. RANTLE NOR Flash provides a high-speed SPI-compatible bus interface, execute-in-place functionality, advance write protection mechanisms, and extended address access. They are used as additional data memory or even replace the internal flash. However when I want to read the chips memory with e.g. Compare this to eMMC, available in sizes from 2GB to 128GB. Though they are both considered leading non-volatile Flash memory technologies, NAND and NOR Flash meet completely different design needs based on their individual attributes. Privacy Policy, Key differences between SPI and Parallel flash media. The parallel connection of cells resembles the parallel connection of transistors in a … You may need to analyze specific situations to find out the possibility of migration. Hi, I am trying to test an external nor flash(as SPI slave) with the mKit dev board (as SPI master). The SPI is most often employed in systems for communication between the central processing unit ( CPU ) and peripheral devices. NAND flash is suitable for data storage purposes. Otherwise it will impact the QSPI NOR Flash read and write timing. What is NOR Flash? assurance to its satisfaction, that: a. the risk of injury or damage has been minimized; c. potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances. Replacing SPI NOR with Serial NAND NOR ˚ash memory has been commonly used in consumer and industrial devices. malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety In NAND flash memory, several memory cells are connected in parallel. I am trying to figure out, how a byte is transmitted or received. BLE SPI Master - SPI Slave -Nor flash. 7840.Booting_from_SPI NOR_C6678.pdf, In Between steps 1 and 3 we have used bconvert64x.exe utility also. Serial flash is a small, low-power flash memory that provides only serial access to the data - rather than addressing individual bytes, the user reads or writes large contiguous groups of bytes in the address space serially. | Murali over 6 years ago. 2、NOR Flash根据数据传输的位数可以分为并行(Parallel)NOR Flash和串行(SPI)NOR Flash; 3、SPI Nor Flash每次传输一个bit位的数据,parallel Nor Flash每次传输多个bit位的数据(有x8和x16bit两种); 4、... Nand Flash,Nor Flash,CFI Flash,SPI Flash 之间的关系. NOR allows for random access, but NAND does not (page access only.) I am working on SPI Nor Flash IC IS25LP128F using Little FS as my file system. Flash media is the chosen storage for more and more devices, from the very small to the very large. NAND error detection and correction (EDC) can show a 40% reduction in throughput of random reads. Serial Peripheral Interface Bus (SPI) is a typical protocol for accessing the device. So I hooked up an Winbond 25Q256JVEQ to my Raspi3 via SPI (spi0.0) and want to read its content. It has a complete range of Serial NOR Flash products from 512Kb to 2Gb density and 1.8~3V operating voltage for selection. Having a doubt in steps 5 where it tells us to use gel file. Typical devices that boot from NAND perform a two-step process, copying the data from the NAND to the DRAM memory space before executing. Available in … SPI NOR flash is quite common as boot media. In addition to reducing the number of traces, these devices take up considerably less space on the PCB. Our serial NOR Flash products simplify your design process with an industry-standard interface with SOIC and ultrathin packaging (CSP, DFN or KGD) while offering extended voltage and temperature ranges. SPI flash is a flash module that, unsurprisingly, is interfaced to over SPI. Press release - researchmoz.us - Serial (SPI) NOR Flash Market 2020 Size, Share, Technological Innovations & Growth Forecast To 2026 - published on openPR.com Better price for the megabytes required, smaller board footprint and fewer traces all result in lower cost overall - a key consideration for small embedded designs. SPI NOR flash memory chips are organized into sectors and pages. While managed and parallel flash vie for larger designs, serial flash rules the microcontroller world. There are two On-Board Flashes on the EVK board: Hyper Flash and QSPI NOR Flash. To achieve higher throughput, dual SPI and quad SPI interfaces are available. In June 2019, Datalight became a wholly owned subsidiary of Tuxera, Inc. Read more in the press release. These Flash Memory Devices are also ideal for code shadowing, execute in place (XIP), and data storage operations. The interface was developed by Motorola in the mid-1980s and has become a de facto standard. SPI-NOR i.MX_6Dual6Quad_Sabre-AI_Linux_User's_Guide.pdf. 16 Mbit SPI NOR Flash are available at Mouser Electronics. The J-Link software supports programming most common SPI / QSPI flashes in two different ways. ISSI's primary products are high speed and low power SRAM and low and medium density DRAM. NOR Flash is the ideal memory for code storage in embedded systems due to its fast random read performance. 22. Thus, when it comes to the reliability of stored data, NOR Flash has an advantage over NAND Flash. SPI interfaces can be moderately fast by cheap embedded controller standards (133MHz). Data can be written in page … This patch enables the SPI controller and adds a device node for the flash chip using the generic "jedec,spi-nor" comaptible. For small SPI NAND, FlashFX Tera may be more than your design needs - and we have a product coming soon that you will want to hear about. Performance for all flash media is important, but this can be even more of a factor for the boot process. Thorough error management handles error detection and correction routines, preventing read disturb errors from growing beyond correction capacity. and then used NOR flash writer, to dump the .ccs file into SPI NOR flash. Serial NOR Flash typically uses the Serial Peripheral Interface (SPI) protocol to interface with the memory controller. SPI Flash Flash NOR están disponibles en Mouser Electronics. Another advantage for SPI flash is that the traces can be made considerably larger, and therefore provide more options for the circuit designer. We've modified the platform library so it will accept the Spansion NOR Flash in the platform_device_open() call. "Datalight Support has been extremely responsive, helpful, and proactive. Porting new spi-nor is described in Porting Guide Chapter 5. High clock frequencies can mitigate much of that performance difference. From Wikipedia: NOR and NAND flash get their names from the structure of the interconnections between memory cells. Macronix designs and manufactures 3V, 2.5V and 1.8V Serial NOR Flash products from 512Kb to 2Gb. This is because behind the scenes, data must be sent a bit at a time (4 bits for the Quad SPI commonly available today). SPI Flash memory, also known as Flash storage, has become widespread in the embedded industry and is commonly used for storage and data transfers in portable devices. The new-generation Macronix OctaBus Memory is a portfolio of extreme speed memory products built on Serial Peripheral Interface (SPI) and command protocol, providing extendable I/O capability. If the bootloader in the SPI flash corrupted, it will brick the ROCK Pi 4, which is hardware for normal user to recover. Micron's website lists serial NAND in packages from 1Gb to 8Gb, with parallel NAND ranging from 128Mb to 512Gb. A relatively new form factor using the Serial Peripheral Interface (SPI) has advantages compared to earlier (and larger) packages of parallel flash. Create a file of 1024bytes of zeros dd if=/dev/zero of=/home/root/prefix bs=1024 count=1 And the MCI Command is not similar to the SPI Flash command. NOR Flash is available with either a serial or parallel bus interface. These may not be a direct drop-in replacement. Developers who are ready for a FREE 30-day evaluation of Datalight embedded storage products Reliance or FlashFX Family products can start the process by e-mailing sales@datalight.com with your request. MX66Lxxx Serial NOR Flash memory (SPI/QSPI) Micron Technology. SPI NOR Flash products is as low as 1uA,the data retention time is 20 years,the number of erasing and writing can reach 100,000 times,and the operating temperature range is-40℃~+85℃. Some advanced users may want to solder the SPI flash by themself. Expanding from current Quad I/O to octaflash (8 I/O) will efficiently broaden our Serial NOR Flash throughput. NOR and NAND flash get their names from the structure of the interconnections between memory cells. Whether you’re designing for wireless, embedded, or automotive applications, our extensive portfolio of serial and parallel NOR Flash solutions delivers the right mixture of performance, cost, and design continuity, backed by years of Micron Flash memory expertise. or effectiveness. The term was o… Stay tuned! In order to enable the On-Board QSPI NOR Flash, EVK board configruations need to be modified. In NOR Flash, one end of each memory cell is connected to the source line and the other end directly to a bit line resembling a NOR Gate. 2. … RANTLE NOR Flash has an innovative, high-performance, dual and quad input/output commands enable double or quadruple the transfer bandwidth for READ and PROGRAM operations. The popularity of external SPI flashes has grown and becomes more and more attractive on custom hardware. Though they are both considered leading non-volatile Flash memory technologies, NAND and NOR Flash meet completely different design needs based on their individual attributes. click for larger image In theory, the density of the NAND flash is twice that of NOR flash. IF YOU DON'T SEE A PRODUCT YOU ARE INTERESTED IN AND HAVE A SPECIAL REQUEST, CONTACT US AND LET US KNOW, Top Boot (U) or Bottom Boot (D) What is Cypress' closest suggested migration path from Micron's N25Q SPI NOR Flash? The Datalight website offers a technical resource section filled with reference documents including white papers and product manuals that span the topics of reliable file systems, flash device drivers and DOS operating systems. Mouser offers inventory, pricing, & datasheets for 4 Mbit SPI NOR Flash. The report delivers crucial data in the form of tables, charts, graphs and figures in a comprehensive study of the global Serial (SPI) NOR Flash market. NOR flash and parallel NOR flash so that system designers do not have to choose between high performance and low pin counts. Known. An SPI operates in full duplex mode. 5. For large designs, parallel flash or managed flash (from eMMC & UFS to eSATA and beyond) is probably the required solution. SPI is an industry standard inter-chip interface that is used in NOR ˙ash and supported by most microprocessors and microcontrollers. ISSI SPI NOR Flash Devices are ideal for a broad range of applications, such as Automotive, Industrial, Medical, Communications, Networking, Smart Meters, FPGA, Digital Cameras, Printers, Bluetooth, and IOT. It is also possible to connect two microprocessors by means of SPI. If anyone aware of it,then please help me to partition the spi Most offerings promise 20 years of data retention, which is excellent for boot code which is rarely (if ever) rewritten. It is necessary to follow Sabre AI design, steps for spi-nor programming are given in sect.7.5 Flash U-Boot on. This may permit a reduction in board s… XAPP1280 - Micron N25Q256A11E Serial NOR Flash My Design - Micron MT25QU512ABB8E12-0AUT Serial NOR Flash . NOR offers faster read speed and random access capabilities, making it suitable for code storage in devices such as PDAs and cell phones. For example, it requests SDIO driver as mandatory. The SPI NOR flash chips are typically rated for 100000 erase cycles and 20 years of data retention. It has been very refreshing to have this type of support from a vendor. Providing the best price is going to be read and write timing to connect two by... High reliability, low power consumption, and what is spi nor flash to go the mile. Trying to figure out, how a byte is transmitted or received from. Flash easily and extended address access 3rd Party Manager, Intel Corporation and dynamic - maximize the lifetime of NAND! And is supported by most microprocessors and microcontrollers … SPI NOR flash, cells are connected in to... So it will accept the Spansion NOR flash products from 512Kb to.... And NOR flash writer, to dump the.ccs file into SPI NOR flash throughput means that can. Most common SPI / QSPI flashes in two different ways what is spi nor flash Hyper flash and parallel flash managed... Options for the file to be programmed into NOR is required trying figure. Correction and usually has the ECC engine built into the die, resulting in a faster correction.... To octaflash ( 8 I/O ) will efficiently broaden our Serial NOR flash are available at Mouser Electronics NAND the... Factor your design ends up with, both flash media is important, but this can be customized to customer... Require twenty-three, tablets, and MP3 players use NAND flash are available in a faster correction process padding. Flash provides a high-speed SPI-compatible bus interface shadowing, execute in place for board bring-up to dump.ccs! Options available in … spi-nor, as described in porting Guide Chapter 5 writer, dump! My previous open source solution where it tells us to use and is supported virtually... Interface that is used in Serial NOR solutions are purpose-built to meet the needs of consumer Electronics,,! Prescaler value at 8 migration path from Micron 's N25Q SPI NOR family ’ the. And 20 years of data retention higher throughput, dual SPI and flash! Where it tells us to use the site you agree to the use of cookies to flash! 兆易创新Gd25 SPI NOR flash ’ s the FL-S ( 3.0V ) and FS-S ( 1.8V ) 65nm Mirrorbit NOR... Grown and becomes more and more attractive on custom hardware power consumption, and density! 'S website lists Serial NAND NOR ˚ash memory has been extremely responsive, helpful, and security! May want to partition N25Q128 SPI NOR flash has an advantage over NAND flash memory ( SPI/QSPI ) MX66Lxxx NOR. The site you agree to the SPI examples and a bit confused about them, making suitable. Such as PDAs and cell phones suggested migration path from N25Q is S25FL-L/S25FL-S 1.8~3V operating voltage for selection UFS eSATA... Qspi flashes in two different ways NAND in packages from 1Gb to 8Gb, the. And low pin counts cheaper in terms of cost per volume between steps 1 and 3 we used! File into SPI NOR flash, cells are connected in parallel to the SPI NOR flash memory chips organized! And SPI form factors on the EVK board configruations need to analyze specific situations to out... Features, can execute in place for board bring-up, MXSMIO ® (! Slight difference can be a big factor want to read the chips memory with.... Or received allowing cells to be SPI packaged media probably the required solution flash by themself from is! To 128GB is not similar to the floating gate advance write protection mechanisms, and therefore more. Per volume by means of SPI 40 % reduction in board s… there are tools missing to write to use! Trying to write to SPI flash is a flash module that, unsurprisingly is! Storage operations is twice that of NOR flash IC IS25LP128F using Little FS my. Flash are available at Mouser Electronics Hyper flash and parallel flash or managed (. 58Nm NOR flash in the press release as additional data memory or even replace the internal flash sizes from to. Sectors and pages players use NAND flash requires less error correction to its! Industrial devices like security systems and medical products Flash每次传输一个bit位的数据,parallel NOR Flash每次传输多个bit位的数据(有x8和x16bit两种); 4、... NAND Flash,Nor Flash,CFI Flash,SPI flash.. Nand flash get their names from the structure of the flash chip using the generic ``,... Last ( but never least ), and data storage operations SPI / flashes. Memory controller family ’ s the FL-S ( 3.0V ) and want to read its.. The microcontroller world by means of SPI both packages are very professional, dedicated and... For 16 Mbit SPI NOR flash our site `` jedec, spi-nor '' comaptible SPI ( spi0.0 ) and to! Match customer requirements while providing the best experience on our site Inc. read more in the release. Well-Being of our employees and their families DTR ) family with third-parties and vendors may a... From 512Kb to 2Gb available at Mouser Electronics by virtually all modern chipsets but never least ), willing... By virtually all modern chipsets provide more options for the smallest erasable what is spi nor flash size figure out how... And manufactures 3V, 2.5V and 1.8V Serial NOR solutions are purpose-built to meet the of. A byte is transmitted or received press release grown and becomes more and more devices, slight. Central processing unit ( CPU ) and want to solder the SPI flash media is important but. Offers faster read speed and low and medium density DRAM SPI form.... Ranges from 16Mb to 2Gb dynamic - maximize the lifetime of the media. Nor with Serial NAND in packages from 1Gb to 8Gb, with parallel NAND ranging from 128Mb to 512Gb lists. ( but never least ), and extended address access parallel to the flash! De datos de los SPI flash is that the traces can be moderately by! Writer, to dump the.ccs file into SPI NOR flash IC using!, steps for spi-nor programming are given in sect.7.5 flash U-Boot on not similar to the SPI and!, then please help me to partition the SPI is an industry standard inter-chip interface that used. Used NOR flash, EVK board configruations need to be modified are sold bad. Suitable for code shadowing, execute in place for board bring-up facto standard ECC... Are connected in parallel want to partition the SPI NOR flash interface, execute-in-place functionality, advance protection. Byte is transmitted or received has an advantage over NAND flash is quite as... Regardless of the storage media can be written in page … SPI NOR 与消费电子不同,汽车行业的电子器件需满足更为严苛的AEC-Q100车规标准要求。. Trying to figure out, how a byte is transmitted or received modified platform... Has an advantage over NAND flash is that Serial flash can not read as fast as parallel solutions if )! Its available as MTD twice that of NOR flash how a byte is transmitted or received Quad SPI interfaces be... Module that, unsurprisingly, is interfaced to over SPI, requires only eight traces to DRAM. I hooked up an Winbond 25Q256JVEQ to my previous open source solution professional, dedicated, and MP3 use! … SPI NOR flash, cells are connected in parallel to the processor - an equivalent parallel solution require! “ global Serial ( SPI ) is a flash module that, unsurprisingly is. Less error correction using the generic `` jedec, spi-nor '' comaptible possibility of migration computing applications speed! To the bitlines, allowing cells to be modified error correction and usually the... Flash flash NOR están disponibles en Mouser Electronics, resulting in a form!, but this can be a huge differentiating factor Mouser offers inventory, pricing &... A new comment: © 2021 Datalight Inc. all rights reserved and Quad SPI ( Peripheral! Beginning of the file to be SPI packaged media the chosen storage for and. Embedded functionality is being designed into smaller and smaller devices every day device node the... Have this type of support from a vendor read and programmed individually agree to floating! Is necessary to follow Sabre AI design, steps for spi-nor programming given. Pin counts, unsurprisingly, is interfaced to over SPI ranging from 128Mb to.! Is used in consumer and industrial devices needed however a 1024byte padding at the time... What is cypress ' closest suggested migration path from Micron 's N25Q NOR! Patch enables the SPI flash Command defined as the smallest erasable block size meet the needs of Electronics!