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TMS570LS3137: EMIF Page Mode Read for Nor Flash

li qunxiong
Intellectual 335 points
Part Number: TMS570LS3137
Other Parts Discussed in Thread: HALCOGEN

Hi,

The manual does not specify how to perform page reading for nor flash,are there any detailed steps?What is the command for page read?

Thanks.

  • 0
    TI__Guru**** 196276 points

    Hi Li,

    EMIF supports Page mode reads for NOR Flash. The page mode can be enabled by writing a 1 to the CSn_PG_MD_EN (n = 2, 3, or 4) field in the Page Mode Control register
    for the chip select in consideration.

    Whenever Page Mode for reads is enabled for a particular chip select, the page size for the device connected must also be programmed in the CSn_PG_SIZE field of the Page
    Mode Control register. The address change to valid read data available timing must be programmed in the CSn_PG_DEL field of the Page Control register.

    The HalCOGen GUI has options to enable the page mode for NOR flash reading:

    Note: The Extended Wait mode and the Select Strobe mode must be disabled when using the asynchronous interface in Page mode.