【摘要】：目前，智能手機(jī)市場(chǎng)爭(zhēng)奪已趨白熱化，也促進(jìn)手機(jī)性能的日益豐富、強(qiáng)大和不斷翻新，并因此改變了全民的通信生活。手機(jī)中的多媒體功能對(duì)高性價(jià)比的RAM，ROM和DSP等有很大的依賴，，其中ROM，工程師通常選用NANDflash，因其具有非易失、抗震、大容量和低成本的特點(diǎn)，并且NAND flash已經(jīng)形成了成熟的產(chǎn)業(yè)規(guī)模。本文基于某公司一款新型手機(jī)基帶芯片項(xiàng)目，基于SOC的IP集成設(shè)計(jì)思想，介紹其SOC系統(tǒng)中閃存控制器的設(shè)計(jì)與驗(yàn)證。 論文首先介紹了NAND flash的結(jié)構(gòu)、功能和特性，應(yīng)盡量理解閃存的配置資源以開(kāi)發(fā)高質(zhì)量的控制器。因此論文以市場(chǎng)中比較典型的一款三星和一款美光閃存芯片為主盡可能詳細(xì)的分析了其結(jié)構(gòu)，原理及內(nèi)部資源配置，以及介紹了新的ONFI閃存標(biāo)準(zhǔn)。 控制器以AHB和AXI為SOC總線接口，可以以從設(shè)備的身份受處理器控制，也可以主設(shè)備的身份與片上網(wǎng)絡(luò)相連進(jìn)行數(shù)據(jù)交互。同時(shí)，設(shè)計(jì)的控制器閃存芯片接口能很好的與閃存芯片協(xié)議匹配，進(jìn)行高效的傳輸。高的性能源于其內(nèi)部設(shè)計(jì)有非常豐富的寄存器及邏輯處理模塊�？刂破髂茏R(shí)別新型ONFI協(xié)議閃存器件。對(duì)控制器完成模塊級(jí)驗(yàn)證后，進(jìn)行合理的頂層包封然后連入SOC系統(tǒng)。 隨后介紹了關(guān)于控制器的系統(tǒng)級(jí)功能驗(yàn)證方法，基于項(xiàng)目設(shè)計(jì)規(guī)范定義了驗(yàn)證功能點(diǎn)，然后根據(jù)實(shí)際應(yīng)用情況，搭建了包含多種規(guī)格閃存虛擬模型的驗(yàn)證平臺(tái)。采用定向激勵(lì)驗(yàn)證的方法，對(duì)各個(gè)功能驗(yàn)證點(diǎn)進(jìn)行了驗(yàn)證，最終達(dá)到對(duì)所有功能點(diǎn)的驗(yàn)證。本文設(shè)計(jì)驗(yàn)證的閃存控制器兼容性強(qiáng)，市場(chǎng)應(yīng)用廣。
[Abstract]:At present, the competition for the smartphone market has become more and more intense, and has promoted the increasingly rich, powerful and constantly renovated mobile phone performance, which has changed the communication life of the whole people. The multimedia function in the mobile phone depends heavily on the high performance-price ratio of RAM,ROM and DSP, among which ROM, engineers usually choose NANDflash, because of its non-volatile, aseismic, large capacity and low cost characteristics. And NAND flash has formed a mature industrial scale. This paper introduces the design and verification of flash memory controller in SOC system based on a new type of mobile phone baseband chip project and IP integrated design idea based on SOC. Firstly, this paper introduces the structure, function and characteristic of NAND flash. We should understand the configuration resource of flash memory to develop high quality controller. Therefore, this paper mainly analyzes the structure, principle and internal resource allocation of a typical Samsung and Micron flash chips in the market, and introduces a new ONFI flash memory standard. The controller uses AHB and AXI as the SOC bus interface, which can be controlled by the processor as the slave device, or the main device can be connected to the on-chip network for data exchange. At the same time, the controller flash chip interface can match the flash chip protocol and transmit efficiently. High performance comes from its rich internal design of registers and logic processing modules. The controller can identify a new ONFI protocol flash device. After the module level verification of the controller is completed, the top layer is encapsulated reasonably and then connected to the SOC system. Then the system level function verification method of the controller is introduced. The verification function points are defined based on the project design specification, and then, according to the actual application, a verification platform including a variety of virtual models of flash memory is built. The method of directional excitation verification is used to verify each function verification point, and finally all function points are verified. The flash controller designed and verified in this paper has strong compatibility and wide market application.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP332;TN47

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本文編號(hào)：2345817