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66AK2H12: EMIF spec

Kz777
Expert 7895 points
Part Number: 66AK2H12

Hi Champs,

This 11.25.1 EMIF16 Electrical Data and Timing mentioned EMIF access timing.

This figure metioned "RS", "RST,","RH", "WS", "WST", "WH", "TA"  value for each of min/max parameter . However, we didn't understand the value what is mean.

Could you please tell us the value which should I refer ?

Regards,

Kz777

  • 0
    TI__Guru**** 161600 points
    Hi,

    Table 11-56. EMIF16 Asynchronous Memory Timing Requirements lists all emif timing parameters. Each of them is depicted in Figure 11-53 through Figure 11-56. You can distinguish them by the column NO. in Table 11-56, you can see that all numbers listed in Table 11-56 are present on the figures.

    The "RS", "RST,","RH", "WS", "WST", "WH" parameters should be setup, strobe & hold times for read and write transactions, however those are not mentioned anywhere in the datasheet. Looping the HW team to confirm/correct my understanding.

    Best Regards,
    Yordan
  • 0 in reply to Yordan Kovachev
    TI__Mastermind 46460 points

    Yordan is correct:

    RS -> Read Setup -> R_SETUP
    RST -> Read Strobe -> R_STROBE
    RH -> Read hold -> R_HOLD
    WS -> Write Setup -> W_SETUP
    WST -> Write strobe -> W_STROBE
    WH -> Write hold -> W_HOLD

    These are the register bit fields defined in the AxCR registers as shown in the EMIF16 UG SPRUGZ3 ( www.ti.com/.../sprugz3 )

    Tom