TDA4VM21 datasheet(245/331 Pages) TI

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(2)

B = ((WEOnTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (WEExtraDelay - CSExtraDelay)) × GPMC_FCLK(14)

(3)

C = ((WEOnTime - ADVOnTime) × (TimeParaGranularity + 1) + 0.5 × (WEExtraDelay - ADVExtraDelay)) × GPMC_FCLK(14)

(4)

D = (WEOnTime × (TimeParaGranularity + 1) + 0.5 × WEExtraDelay) × GPMC_FCLK(14)

(5)

E = ((WrCycleTime - WEOffTime) × (TimeParaGranularity + 1) - 0.5 × WEExtraDelay) × GPMC_FCLK(14)

(6)

F = ((ADVWrOffTime - WEOffTime) × (TimeParaGranularity + 1) + 0.5 × (ADVExtraDelay - WEExtraDelay)) × GPMC_FCLK(14)

(7)

G = ((CSWrOffTime - WEOffTime) × (TimeParaGranularity + 1) + 0.5 × (CSExtraDelay - WEExtraDelay)) × GPMC_FCLK(14)

(8)

H = WrCycleTime × (1 + TimeParaGranularity) × GPMC_FCLK(14)

(9)

I = ((OEOnTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (OEExtraDelay - CSExtraDelay)) × GPMC_FCLK(14)

(10) K = (OEOffTime - OEOnTime) × (1 + TimeParaGranularity) × GPMC_FCLK(14)

(11) L = RdCycleTime × (1 + TimeParaGranularity) × GPMC_FCLK(14)

(12) M = ((CSRdOffTime - OEOffTime) × (TimeParaGranularity + 1) + 0.5 × (CSExtraDelay - OEExtraDelay)) × GPMC_FCLK(14)

(13) In GPMC_CSn[i], i is equal to 0, 1, 2 or 3.

(14) GPMC_FCLK is general-purpose memory controller internal functional clock period in ns.

(15) For div_by_1_mode:

•

GPMC_CONFIG1_i Register: GPMCFCLKDIVIDER = 0h:

–

GPMC_CLK frequency = GPMC_FCLK frequency

(16) For 133 MHz:

•

CTRLMMR_GPMC_CLKSEL[1-0] CLK_SEL = 00 = MAIN_PLL0_HSDIV3_CLKOUT

GPMC_FCLK

GPMC_CSn[i]

GPMC_BE0n_CLE

GPMC_ADCn_ALE

GPMC_OEn_REn

GPMC_WEn

GPMC_AD[15:0]

Command

GNF0

GNF1

GNF2

GNF3

GNF4

GNF5

GNF6

GPMC_12

In GPMC_CSn[i], i is equal to 0, 1, 2 or 3.

Figure 6-74. GPMC and NAND Flash — Command Latch Cycle

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TDA4VM-Q1, TDA4VM

SPRSP36K – SEPTEMBER 2021 – REVISED APRIL 2024

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TDA4VM21 Datasheet(PDF) 245 Page - Texas Instruments

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