OMAP3525-HIREL_16 Datasheet, PDF (158/262 Pages) Texas Instruments – OMAP3525-HiRel and OMAP3530-HiRel Applications Processor

OMAP3525-HiRel, OMAP3530-HiRel
SPRS599D – JUNE 2009 – REVISED AUGUST 2010
www.ti.com
– G = 0.5 * ADVExtraDelay * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime) is a multiple of 3)
– G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime – 1) is a multiple of 3)
– G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK 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
– Case GpmcFCLKDivider = 1:
– H = 0.5 * OEExtraDelay * GPMC_FCLK if (ClkActivationTime and OEOnTime are odd) or (ClkActivationTime and OEOnTime
are even)
– H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK otherwise
– Case GpmcFCLKDivider = 2:
– H = 0.5 * OEExtraDelay * GPMC_FCLK if ((OEOnTime – ClkActivationTime) is a multiple of 3)
– H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOnTime – ClkActivationTime – 1) is a multiple of 3)
– H = (2 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOnTime – ClkActivationTime – 2) is a multiple of 3)
For OE rising edge (OE deactivated):
– GpmcFCLKDivider = 0:
– H = 0.5 * OEExtraDelay * GPMC_FCLK
– Case GpmcFCLKDivider = 1:
– H = 0.5 * OEExtraDelay * GPMC_FC if (ClkActivationTime and OEOffTime are odd) or (ClkActivationTime and OEOffTime are
even)
– H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK otherwise
– Case GpmcFCLKDivider = 2:
– H = 0.5 * OEExtraDelay * GPMC_FCLK if ((OEOffTime – ClkActivationTime) is a multiple of 3)
– H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOffTime – ClkActivationTime – 1) is a multiple of 3)
– H = (2 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOffTime – ClkActivationTime – 2) is a multiple of 3)
(9) For WE falling edge (WE activated):
– Case GpmcFCLKDivider = 0:
– I = 0.5 * WEExtraDelay * GPMC_FCLK
– Case GpmcFCLKDivider = 1:
– I = 0.5 * WEExtraDelay * GPMC_FCLK if (ClkActivationTime and WEOnTime are odd) or (ClkActivationTime and WEOnTime
are even)
– I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK otherwise
– Case GpmcFCLKDivider = 2:
– I = 0.5 * WEExtraDelay * GPMC_FCLK if ((WEOnTime – ClkActivationTime) is a multiple of 3)
– I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOnTime – ClkActivationTime – 1) is a multiple of 3)
– I = (2 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOnTime – ClkActivationTime – 2) is a multiple of 3)
For WE rising edge (WE deactivated):
– Case GpmcFCLKDivider = 0:
– I = 0.5 * WEExtraDelay * GPMC_FCLK
– Case GpmcFCLKDivider = 1:
– I = 0.5 * WEExtraDelay * GPMC_FCLK if (ClkActivationTime and WEOffTime are odd) or (ClkActivationTime and WEOffTime
are even)
– I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK otherwise
– Case GpmcFCLKDivider = 2:
– I = 0.5 * WEExtraDelay * GPMC_FCLK if ((WEOffTime – ClkActivationTime) is a multiple of 3)
– I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOffTime – ClkActivationTime – 1) is a multiple of 3)
– I = (2 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOffTime – ClkActivationTime – 2) is a multiple of 3)
(10) J = GPMC_FCLK period
(11) In gpmc_ncsx, x is equal to 0, 1, 2, 3, 4, 5, 6, or 7. In gpmc_waitx, x is equal to 0, 1, 2, or 3.
(12) P = gpmc_clk period
(13) For read: K = (ADVRdOffTime – ADVOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For write: K = (ADVWrOffTime – ADVOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(14) GPMC_FCLK is General-Purpose Memory Controller internal functional clock.
(15) Related to the gpmc_clk output clock maximum and minimum frequencies programmable in the I/F module by setting the
GPMC_CONFIG1_CSx configuration register bit field GpmcFCLKDivider.
(16) The jitter probability density can be approximated by a Gaussian function.
(17) M = (RdCycleTime - AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
Above M parameter expression is given as one example of GPMC programming. IO DIR signal will go from IN to OUT after both
RdCycleTime and BusTurnAround completion. Behavior of IO direction signal does depend on kind of successive Read/Write accesses
performed to Memory and multiplexed or non-multiplexed memory addressing scheme, bus keeping feature enabled or not. IO DIR
behavior is automatically handled by GPMC controller. For a full description of the gpmc_io_dir feature, see the OMAP35x Technical
Reference Manual (TRM) [literature number SPRUF98 ].
158 TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS
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