AM3359 datasheet(137/256 Pages) TI1

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AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351

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SPRS717L – OCTOBER 2011 – REVISED MARCH 2020

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Peripheral Information and Timings

Table 7-28. GPMC and NOR Flash Switching Characteristics—Asynchronous Mode (continued)

NO.

PARAMETER

OPP100

OPP50

UNIT

MIN

MAX

MIN

MAX

FA28

td(wenV-dV)

Delay time, output write enable gpmc_ wen

valid to output data gpmc_ad[15:0] valid

2.0

FA29

td(dV-csnV)

Delay time, output data gpmc_ad[15:0] valid to

output chip select gpmc_csn[x](13) valid

J(9) – 0.2

J(9) + 2.0

J(9) – 5

J(9) + 5

FA37

td(oenV-aIV)

Delay time, output enable gpmc_oen valid to

output address gpmc_ad[15:0] phase end

2.0

(1) For single read: A = (CSRdOffTime – CSOnTime) × (TimeParaGranularity + 1) × GPMC_FCLK(14)

For single write: A = (CSWrOffTime – CSOnTime) × (TimeParaGranularity + 1) × GPMC_FCLK(14)

For burst read: A = (CSRdOffTime – CSOnTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK(14)

For burst write: A = (CSWrOffTime – CSOnTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK(14)

with n being the page burst access number

(2) For reading: B = ((ADVRdOffTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (ADVExtraDelay – CSExtraDelay)) ×

GPMC_FCLK(14)

For writing: B = ((ADVWrOffTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (ADVExtraDelay – CSExtraDelay)) ×

GPMC_FCLK(14)

(3) C = ((OEOffTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (OEExtraDelay – CSExtraDelay)) × GPMC_FCLK(14)

(4) D = PageBurstAccessTime × (TimeParaGranularity + 1) × GPMC_FCLK(14)

(5) E = ((WEOnTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (WEExtraDelay – CSExtraDelay)) × GPMC_FCLK(14)

(6) F = ((WEOffTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (WEExtraDelay – CSExtraDelay)) × GPMC_FCLK(14)

(7) G = Cycle2CycleDelay × GPMC_FCLK(14)

(8) I = ((OEOffTime + (n – 1) × PageBurstAccessTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (OEExtraDelay – CSExtraDelay))

× GPMC_FCLK(14)

(9) J = (CSOnTime × (TimeParaGranularity + 1) + 0.5 × CSExtraDelay) × GPMC_FCLK(14)

(10) K = ((ADVOnTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (ADVExtraDelay – CSExtraDelay)) × GPMC_FCLK(14)

(11) L = ((OEOnTime – CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (OEExtraDelay – CSExtraDelay)) × GPMC_FCLK(14)

(12) For single read: N = RdCycleTime × (TimeParaGranularity + 1) × GPMC_FCLK(14)

For single write: N = WrCycleTime × (TimeParaGranularity + 1) × GPMC_FCLK(14)

For burst read: N = (RdCycleTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK(14)

For burst write: N = (WrCycleTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × 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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