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has to discard the 850 chipset and re-launch the 845 chipset that supports SDRAM to match P4. This may be the case when we buy P4 earlier. Motherboard In fact, the performance of P4 is restricted by the memory. The 845d, 848, and other chipsets that later support DDR single-channel memory did not solve the problem perfectly. Later, the 865 chipset that supports "dual-channel" was used to solve the problem. The dual-channel ddr266 bandwidth meets the P4 of fsb533, while the dual-channel ddr400
AM2 processor After some of the adjustment of the column, Athlon64 3000+ and Athlon64 X2 3800+ has become the AMD platform cost-effective pronoun, and the matching NF5 series motherboard has become the focus of attention. Recently, some buyers of NF5 motherboards reflect that in the dual-channel DDR2 667 specifications of the memory will encounter serious compatibility problems, the forum for help Voice. If you're being bothered by NF5 motherboard and
, everyone is most concerned with the resource allocation between two cores, communication methods, and how to efficiently achieve resource sharing. ARM exclusive (DSP unavailable) peripherals include: UART0/1/2, I2C, watchdog timer, PWM0/1/2, ARM interrupt controller, USB2.0, ATA/CF, SPI, GPIO, VPSS, EMAC/MDIO, emifa control, VLYNQ, MMC/SD. Peripherals of DSP exclusive (ARM unavailable) include DSP interrupt controller and VICP. Peripherals shared by ARM and DSP include EDMA, Timer0/1, Power S
the dsp_bt pin level. If it is high, it is self-guided. If it is low, it is guided by arm. 2. UBL stage, that is, U-boot stage : Ti officially provides U-boot, so the U-boot startup process is described here. In the initial phase of U-boot, the system clock and DDR frequency are initialized to prepare the environment for loading the C program. At this time, the program runs in arm Ram or nor flash, which is determined by the startup method. Copy the U-boot code to the DDR and jump to t
DDR3 is a computer memory specification. It belongs to the SDRAM family of memory products, providing a higher operating performance compared to DDR2 SDRAM and lower voltage. Introduction to DDR3 Technology DDR3 SDRAM in order to save power, faster transmission efficiency, the use of SSTL 15 I/O interface, operating I/O voltage is 1.5V, the use of CSP, FBGA package packaging, in addition to the continuation of D
divider = DDR/DDR2 memory bus frequency = DDR/DDR2 memory operating frequency * 2 * Note: If memory divider is not an integer, for example, 4.6, you must set memory divider to 5 to avoid Memory overclock operations. For amd AM2 athlon 64 3200 +, the CPU frequency is 200 MHz * 10 = 2000 MHz. If we use DDR2 667 memory --> The data transmission rate is 667 MHz, the
graphics G31, there are currently 7 models. Bearlake's 7 models, commercial-oriented to start with Q, including Q35 and Q33, for the household including high-end products and two series of mainstream products, high-end products have X38, mainstream products have P35, G35, G33 and later joined the G31. Where the G Word starts with a motherboard chipset product with integrated graphics. High-end X38: Support Quad core processor, ddr3-1333 memory, PCI-E 2.0, pci-e x16x2, front-end bus 1333MHz, w
Crazy Rain-All rights reserved, reprint please specify "http://blog.csdn.net/u010346967" Welcome to JoinQQ Group of teacher Zhu's Internet of things big classLearn to progress togetherGroup number: 397164505Still the old saying, with the most primitive information, then where to find it. Of course it's Samsung, s5pv210 is Samsung, go online download s5pv210_irom_applicationnote_preliminary_20091126.pdfWhen it comes to booting the system, what storage media is required? First of all have to sta
4 error data bits, the server's reliability and stability are more fully protected. (3) Register Register is register or directory register, the role in memory we can take it to understand the catalog of the book, with it, when the memory received read and write instructions, the directory will be retrieved before the read and write operation, which will greatly improve the server memory efficiency. Memory with register must have buffer (buffer), and the current register memory can also have
SdramSDRAM (Synchronous dynamic random access memory) is synchronous, which means that the memory work requires a step clock, the internal command is sent and the data is transmitted as a benchmark Dynamic means that the storage array needs constant refresh to ensure that data is not lost, and stochastic means that the data is not stored linearly, but the data is read and written by the specified address. The current 168-wire 64bit bandwidth memory basically uses SDRAM chip, operating voltage 3.
of dram chip. 5. the common DRAM is DDR/DDR2 SDRAM. the so-called "S" Dram refers to synchronous DRAM, that is, DRAM operation is performed by referring to a clock, that is, synchronous ). DDR refers to double data rate, that is, data can be transmitted in the rising and falling edge of clock. DDR2 refers to the "second generation" of DDR "! (Do not think of it as DD
godson computer details, support for domestic please come in!Http://ike.126.com Come near Godson computer Currently using the Godson 2nd processor computer has two, a municator at the beginning of the CeBIT exhibition on the exhibition, it was launched by the Mongolian Gazelle (Yellowsheepriver) in Macao, China. Municator adopted the Godson 2C processor (BGA packaging), the main frequency 400mhz~800mhz,133mhz FSB, the other configured with 40GB ha
Document directory Storage Device Interface technical details Read operations Write operation IP address optimized based on the Cyclone II Device In the new and existing FPGA market, what is Cyclone? The II device extends the role of FPGA in low-cost and large-volume applications. FPGA is now no longer limited to peripheral applications and can execute many key processing tasks in the system. As FPGA is increasingly applied to the data path of the system, FPGA must have interfaces with
, # aipsreg_opacr4_offset] ; Set all mprx to be non-bufferable, trusted for R/W, ; Not forced to user-mode. LDR r0, = (0x77777777) STR r0, [R1, # aipsreg_mpr0_offset] STR r0, [R1, # aipsreg_mpr1_offset] STR r0, [R2, # aipsreg_mpr0_offset] STR r0, [R2, # aipsreg_mpr1_offset] Memory initialization 1.7 Configure the relevant pins of DDR2 as DDR2 input, for example: Figure 3 By setting iomuxc_sw_pad_ctl_grp
Http://www.cnblogs.com/spartan/archive/2011/05/06/2038747.htmlSdramSDRAM (Synchronous dynamic random access memory), synchronous, refers to the memory work requires a step clock , The transmission of internal commands and the transfer of data are based on it, dynamic refers to the storage array needs to be constantly refreshed to ensure that the data is not lost, random refers to the data is not linear storage , but by the specified address to read and write data. The current 168-wire 64bit band
Often encounter someone want to replace memory do not know what kind of memory to buy, also often meet people ask upgrade memory to buy what kind of memory is compatible, here to share a bit, incidentally popular science. The hand party can jump straight over to see the summary:1, different generations of memory is incompatible with each other. Memory can be divided into DDR1, DDR2, DDR3, here 1, 2, 3 refers to the first generation of memory, these me
① What computer memory is used for. Because memory is faster than hard disk, when the CPU starts working, it writes some of the commonly used information to memory and reads it from memory instead of from the hard disk when it is used. This reading speed is obviously faster to read the hard drive, improve the efficiency, so get a memory is necessary! ② often see for example DDR2 800 and DDR3 1333 what these represent
-bit 4*2 8x 4400 8x versionGeforce4 ti4600 8.0 DDR 128 MB 300/650 128-bit 4*2 4XGeforce4 ti4800 8.0 DDR 128 MB 300/650 128-bit 4*2 8x 4600 8x versionGeforce fx5200 9 DDR 64 MB 250/400 128-bit 2*2 8xGeforce fx5200 U 9 DDR 128 MB 325/650 128-bit 2*2 8xGeforce fx5500 9 DDR 128 MB 270/400 128-bit 2*2 8xGeforce fx5600 XT 9 DDR 128 MB 235/400 128-bit 2*2 8xGeforce fx5600 9 DDR 128 MB 325/550 128-bit 2*2 8xGeforce fx5600 U 9 DDR 128 MB 350/700 128-bit 2*2 8xGeforce fx5600 U 9 DDR 128 MB 400/800 128-bit
necessary! ② often see for example DDR2 800 and DDR3 1333 what these represent DDR2 refers to 2 generation of memory, memory is divided into DDR (1 generation), DDR2 (2 generation), DDR3 (3 generation), of course, performance comparison, 3 generation of performance >2 generation of >1 generation. As for similar to DDR2
mainstream integrated graphics card chipset and supports PCI-E x16 slots, other parameters are similar to P.· GV and GL are integrated graphics card simplified version of the chipset, does not support PCI-E x16 slot, other parameters GV and G are the same, GL has shrunk.· X and Xe are enhanced compared to P, with no integrated graphics card and support for PCI-E x16 slots. In general, there are no strict naming rules for Intel chipset, but this is generally the case above. In addition, the nami
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