SDRAM interface slashes pin count

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SDRAM interface slashes pin count

Many designs need deep buffering but don't require ultrahigh-memory bandwidth. Examples include image and audio processing, as well as some deep-FIFO applications. These designs often use a single ×8 SDRAM device that connects to an FPGA or ASIC. Thi…

LPC（Low Pin Count）与SIO（Super IO）

记录bios学习的点点滴滴,虽然已经学了很长时间才发出来,但就当是温故而知新吧,由于水平有限,难免存在错误,望指正,同时感谢CSDN提供的平台. 1.LPC 定义: Intel所定义的PC接口,将以往ISA BUS的地址/数据分离译码,改成类似PCI的地址/数据信号线共享的译码方式,信号线数量大幅降低,工作速率由PCI总线速率同步驱动,虽然改良过的LPC接口一样维持最大传输值16MB/s,不过所需要的信号脚位数大幅降低25~30个,以LPC接口设计的Super I/O芯片.Flash芯片都能享…

PatentTips - Invalidating TLB entries in a virtual machine system

BACKGROUND This invention relates to virtual machines. In particular, the invention relates to translation lookaside buffers that support a virtual-machine system. A virtual-machine system is a computer system that includes a virtual machine monitor…

FPGA4U FPGA SDRAM Controller

-- https://fpga4u.epfl.ch/wiki/FPGA4U_Description -- The SDRAM bits data ..> signals, -- one ..>. -- This memory is a synchronous SDRAM, validating address and control signals with the rising edge of SDRAM_CLK, -- banks selected by SDRAM_BA<..>…

JTAG 引脚自动识别 JTAG Finder, JTAG Pinout Tool, JTAG Pin Finder, JTAG pinout detector, JTAGULATOR, Easy-JTAG, JTAG Enumeration

JTAG Finder Figuring out the JTAG Pinouts on a Device is usually the most time-consuming and frustrating process and Finding the pinouts for these ports allows you to access with correct JTAG Devices likeGPG ORT, and JTAG Finder helps you to get sta…

SDRAM总结

使用的流程 W9825G6JH winbond sdram 4M words X 4banks X 16bits=. Accesses to the SDRAM are burst oriented. Up to 200MHz CAS Latency 2 and 3 Burst Length 1,2,4,9 and Full page BUrst Read, Single Writes Mode 8K Refresh Cycles/64mS 1 After power up, an initia…

sdram控制2

芯片手册要求sdram需要在64ms内刷新8K次,否则里面的数据会丢失,因此在64ms分成8192次,每次刷新充一次电,然后给两次自动刷新命令即可. /*----------------------------------------------------------------------- Date : 2017-08-29 Description : Design for auto refresh. --------------------------------------------…