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Recent content by eject

  1. E

    VHDL "after" statement

    after * 1 ns vhdl Some VHDL tool will not do this delay as i know.
  2. E

    passing clocks to 2nd fpga

    1/ high-freq in PCB might cause EMI 2/ Which one you want to improve, jitter or long-term jitter ?
  3. E

    Resources about ATA/ATARI protocol

    ATA/ATARI Protocol CD-ROM will need ATAPI command, see ATA/ATAPI-4 spec. At least you have to read following command Identify-Packet Device Packet Service
  4. E

    Resources about ATA/ATARI protocol

    ATA/ATARI Protocol Well, that depends on what you're going to design. There are ATA(HDD), ATAPI(CD,DVD,MO) devices So, if your device is trying to access CDROM - Spec over ATA/ATAPI-4 is required And, there are 3 kind of access timing PIO, (S)MDMA, UDMA Speed is also different... My...
  5. E

    NAND or NOR is faster

    depends on usage NOR is faster for random access NAND is faster for sequence access
  6. E

    Resources about ATA/ATARI protocol

    ATA/ATARI Protocol www.t13.org
  7. E

    Help me write a SPI interface for CPU in VHDL

    spi interface vhdl MX25L512 - 512Kb SPI Flash Model http://www.mxic.com.tw/QuickPlace/hq/PageLibrary48256F5500439ED0.nsf/h_CE4C9490FDF4280B48256F550043C6D8/027603E0348A83C04825704D001FB451/$File/mx25L512.v?OpenElement
  8. E

    Help me write a SPI interface for CPU in VHDL

    vhdl spi Plz see www.mxic.com.tw for 25xx series ther are free model download
  9. E

    @)GB IDE HD with USB 2.0 interface

    See, Cypress AT2 series CY7C68300A or other CY7C683xx
  10. E

    dsp processor vs microcontroller

    microcontroller vs dsp MAC unit
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