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AMIC110 Datasheet, PDF (121/214 Pages) Texas Instruments – Sitara Processors | |||
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AMIC110
SPRS971A â AUGUST 2016 â REVISED SEPTEMBER 2016
Table 7-11. GPMC and NOR Flash Switching CharacteristicsâAsynchronous Mode (continued)
NO.
FA27 td(csnV-wenIV)
PARAMETER
Delay time, output chip select gpmc_csn[x](13)
valid to output write enable gpmc_wen invalid
OPP100
MIN
MAX
F(6) â 0.2 F(6) + 2.0
OPP50
MIN
MAX
F(6) â 5
F(6) + 5
UNIT
ns
FA28 td(wenV-dV)
Delay time, output write enable gpmc_ wen
valid to output data gpmc_ad[15:0] valid
2.0
5 ns
FA29 td(dV-csnV)
Delay time, output data gpmc_ad[15:0] valid to
output chip select gpmc_csn[x](13) valid
J(9) â 0.2 J(9) + 2.0
J(9) â 5
J(9) + 5 ns
FA37 td(oenV-aIV)
Delay time, output enable gpmc_oen valid to
output address gpmc_ad[15:0] phase end
2.0
5 ns
(1) For single read: A = (CSRdOffTime â CSOnTime) Ã (TimeParaGranularity + 1) Ã GPMC_FCLK(14)
For single write: A = (CSWrOffTime â CSOnTime) Ã (TimeParaGranularity + 1) Ã GPMC_FCLK(14)
For burst read: A = (CSRdOffTime â CSOnTime + (n â 1) Ã PageBurstAccessTime) Ã (TimeParaGranularity + 1) Ã GPMC_FCLK(14)
For burst write: A = (CSWrOffTime â CSOnTime + (n â 1) Ã PageBurstAccessTime) Ã (TimeParaGranularity + 1) Ã GPMC_FCLK(14)
with n being the page burst access number
(2) For reading: B = ((ADVRdOffTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (ADVExtraDelay â CSExtraDelay)) Ã
GPMC_FCLK(14)
For writing: B = ((ADVWrOffTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (ADVExtraDelay â CSExtraDelay)) Ã
GPMC_FCLK(14)
(3) C = ((OEOffTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (OEExtraDelay â CSExtraDelay)) Ã GPMC_FCLK(14)
(4) D = PageBurstAccessTime à (TimeParaGranularity + 1) à GPMC_FCLK(14)
(5) E = ((WEOnTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (WEExtraDelay â CSExtraDelay)) Ã GPMC_FCLK(14)
(6) F = ((WEOffTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (WEExtraDelay â CSExtraDelay)) Ã GPMC_FCLK(14)
(7) G = Cycle2CycleDelay à GPMC_FCLK(14)
(8) I = ((OEOffTime + (n â 1) Ã PageBurstAccessTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (OEExtraDelay â CSExtraDelay))
à GPMC_FCLK(14)
(9) J = (CSOnTime à (TimeParaGranularity + 1) + 0.5 à CSExtraDelay) à GPMC_FCLK(14)
(10) K = ((ADVOnTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (ADVExtraDelay â CSExtraDelay)) Ã GPMC_FCLK(14)
(11) L = ((OEOnTime â CSOnTime) Ã (TimeParaGranularity + 1) + 0.5 Ã (OEExtraDelay â CSExtraDelay)) Ã GPMC_FCLK(14)
(12) For single read: N = RdCycleTime à (TimeParaGranularity + 1) à GPMC_FCLK(14)
For single write: N = WrCycleTime à (TimeParaGranularity + 1) à GPMC_FCLK(14)
For burst read: N = (RdCycleTime + (n â 1) Ã PageBurstAccessTime) Ã (TimeParaGranularity + 1) Ã GPMC_FCLK(14)
For burst write: N = (WrCycleTime + (n â 1) Ã PageBurstAccessTime) Ã (TimeParaGranularity + 1) Ã GPMC_FCLK(14)
(13) In gpmc_csn[x], x is equal to 0, 1, 2, 3, 4, or 5.
(14) GPMC_FCLK is general-purpose memory controller internal functional clock period in ns.
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