AM3359_1211 Datasheet, PDF (119/222 Pages) Texas Instruments – AM335x ARM Cortex-A8 Microprocessors (MPUs)

AM3359, AM3358, AM3357
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SPRS717D – OCTOBER 2011 – REVISED MAY 2012
For burst read: D = (RdCycleTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK⁽¹⁴⁾
For burst write: D = (WrCycleTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK⁽¹⁴⁾
(5) For single read: E = (CSRdOffTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK⁽¹⁴⁾
For burst read: E = (CSRdOffTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK⁽¹⁴⁾
For burst write: E = (CSWrOffTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK⁽¹⁴⁾
(6) For csn falling edge (CS activated):
– Case GpmcFCLKDivider = 0:
– F = 0.5 * CSExtraDelay * GPMC_FCLK⁽¹⁴⁾
– Case GpmcFCLKDivider = 1:
– F = 0.5 * CSExtraDelay * GPMC_FCLK⁽¹⁴⁾ if (ClkActivationTime and CSOnTime are odd) or (ClkActivationTime and CSOnTime
are even)
– F = (1 + 0.5 * CSExtraDelay) * GPMC_FCLK⁽¹⁴⁾ otherwise
– Case GpmcFCLKDivider = 2:
– F = 0.5 * CSExtraDelay * GPMC_FCLK⁽¹⁴⁾ if ((CSOnTime – ClkActivationTime) is a multiple of 3)
– F = (1 + 0.5 * CSExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((CSOnTime – ClkActivationTime – 1) is a multiple of 3)
– F = (2 + 0.5 * CSExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((CSOnTime – ClkActivationTime – 2) is a multiple of 3)
(7) For ADV falling edge (ADV activated):
– Case GpmcFCLKDivider = 0:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾
– Case GpmcFCLKDivider = 1:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾ if (ClkActivationTime and ADVOnTime are odd) or (ClkActivationTime and
ADVOnTime are even)
– G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ otherwise
– Case GpmcFCLKDivider = 2:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾ if ((ADVOnTime – ClkActivationTime) is a multiple of 3)
– G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((ADVOnTime – ClkActivationTime – 1) is a multiple of 3)
– G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((ADVOnTime – ClkActivationTime – 2) is a multiple of 3)
For ADV rising edge (ADV deactivated) in Reading mode:
– Case GpmcFCLKDivider = 0:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾
– Case GpmcFCLKDivider = 1:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾ if (ClkActivationTime and ADVRdOffTime are odd) or (ClkActivationTime and
ADVRdOffTime are even)
– G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ otherwise
– Case GpmcFCLKDivider = 2:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾ if ((ADVRdOffTime – ClkActivationTime) is a multiple of 3)
– G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((ADVRdOffTime – ClkActivationTime – 1) is a multiple of 3)
– G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((ADVRdOffTime – ClkActivationTime – 2) is a multiple of 3)
For ADV rising edge (ADV deactivated) in Writing mode:
– Case GpmcFCLKDivider = 0:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾
– Case GpmcFCLKDivider = 1:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾ if (ClkActivationTime and ADVWrOffTime are odd) or (ClkActivationTime and
ADVWrOffTime are even)
– G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ otherwise
– Case GpmcFCLKDivider = 2:
– G = 0.5 * ADVExtraDelay * GPMC_FCLK⁽¹⁴⁾ if ((ADVWrOffTime – ClkActivationTime) is a multiple of 3)
– G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((ADVWrOffTime – ClkActivationTime – 1) is a multiple of 3)
– G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((ADVWrOffTime – ClkActivationTime – 2) is a multiple of 3)
(8) For OE falling edge (OE activated) / IO DIR rising edge (Data Bus input direction):
– Case GpmcFCLKDivider = 0:
– H = 0.5 * OEExtraDelay * GPMC_FCLK⁽¹⁴⁾
– Case GpmcFCLKDivider = 1:
– H = 0.5 * OEExtraDelay * GPMC_FCLK⁽¹⁴⁾ if (ClkActivationTime and OEOnTime are odd) or (ClkActivationTime and OEOnTime
are even)
– H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK⁽¹⁴⁾ otherwise
– Case GpmcFCLKDivider = 2:
– H = 0.5 * OEExtraDelay * GPMC_FCLK⁽¹⁴⁾ if ((OEOnTime – ClkActivationTime) is a multiple of 3)
– H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((OEOnTime – ClkActivationTime – 1) is a multiple of 3)
– H = (2 + 0.5 * OEExtraDelay) * GPMC_FCLK⁽¹⁴⁾ if ((OEOnTime – ClkActivationTime – 2) is a multiple of 3)
For OE rising edge (OE deactivated):
– Case GpmcFCLKDivider = 0:
– H = 0.5 * OEExtraDelay * GPMC_FCLK⁽¹⁴⁾
– Case GpmcFCLKDivider = 1:
– H = 0.5 * OEExtraDelay * GPMC_FCLK⁽¹⁴⁾ if (ClkActivationTime and OEOffTime are odd) or (ClkActivationTime and OEOffTime
are even)
– H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK⁽¹⁴⁾ otherwise
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Peripheral Information and Timings 119
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