AMIC110 Datasheet, PDF (112/214 Pages) Texas Instruments – Sitara Processors

AMIC110
SPRS971A – AUGUST 2016 – REVISED SEPTEMBER 2016
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Table 7-7. GPMC and NOR Flash Switching Characteristics—Synchronous Mode⁽²⁾ (continued)
NO.
F18 t_w(csnV)
F19 t_w(be[x]nV)
F20 t_w(advnV)
PARAMETER
Pulse duration, output chip select
gpmc_csn[x]⁽¹⁴⁾ low
Pulse duration, output lower byte enable
and command latch enable
gpmc_be0n_cle, output upper byte enable
gpmc_be1n low
Pulse duration, output address valid and
address latch enable gpmc_advn_ale low
Read
Write
Read
Write
Read
Write
OPP100
MIN
A⁽¹⁾
A⁽¹⁾
C⁽³⁾
MAX
C⁽³⁾
K⁽¹⁶⁾
K⁽¹⁶⁾
OPP50
MIN
A⁽¹⁾
A⁽¹⁾
C⁽³⁾
UNIT
MAX
ns
ns
ns
C⁽³⁾
ns
K⁽¹⁶⁾
ns
K⁽¹⁶⁾
ns
(1) For single read: A = (CSRdOffTime – CSOnTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
For burst read: A = (CSRdOffTime – CSOnTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
For burst write: A = (CSWrOffTime – CSOnTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
With n being the page burst access number.
(2) B = ClkActivationTime × GPMC_FCLK⁽¹⁷⁾
(3) For single read: C = RdCycleTime × (TimeParaGranularity + 1) × GPMC_FCLK ⁽¹⁷⁾
For burst read: C = (RdCycleTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
For burst write: C = (WrCycleTime + (n – 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
With n being the page burst access number.
(4) For single read: D = (RdCycleTime – AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
For burst read: D = (RdCycleTime – AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
For burst write: D = (WrCycleTime – AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
(5) For single read: E = (CSRdOffTime – AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
For burst read: E = (CSRdOffTime – AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
For burst write: E = (CSWrOffTime – AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK⁽¹⁷⁾
(6) For csn falling edge (CS activated):
– Case GpmcFCLKDivider = 0:
– F = 0.5 × CSExtraDelay × GPMC_FCLK⁽¹⁷⁾
– Case GpmcFCLKDivider = 1:
– F = 0.5 × CSExtraDelay × GPMC_FCLK⁽¹⁷⁾ if (ClkActivationTime and CSOnTime are odd) or (ClkActivationTime and
CSOnTime are even)
– F = (1 + 0.5 × CSExtraDelay) × GPMC_FCLK⁽¹⁷⁾ otherwise
– Case GpmcFCLKDivider = 2:
– F = 0.5 × CSExtraDelay × GPMC_FCLK⁽¹⁷⁾ if ((CSOnTime – ClkActivationTime) is a multiple of 3)
– F = (1 + 0.5 × CSExtraDelay) × GPMC_FCLK⁽¹⁷⁾ if ((CSOnTime – ClkActivationTime – 1) is a multiple of 3)
– F = (2 + 0.5 × CSExtraDelay) × GPMC_FCLK⁽¹⁷⁾ 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⁽¹⁷⁾
– Case GpmcFCLKDivider = 1:
– G = 0.5 × ADVExtraDelay × GPMC_FCLK⁽¹⁷⁾ if (ClkActivationTime and ADVOnTime are odd) or (ClkActivationTime and
ADVOnTime are even)
– G = (1 + 0.5 × ADVExtraDelay) × GPMC_FCLK⁽¹⁷⁾ otherwise
– Case GpmcFCLKDivider = 2:
– G = 0.5 × ADVExtraDelay × GPMC_FCLK⁽¹⁷⁾ if ((ADVOnTime – ClkActivationTime) is a multiple of 3)
– G = (1 + 0.5 × ADVExtraDelay) × GPMC_FCLK⁽¹⁷⁾ if ((ADVOnTime – ClkActivationTime – 1) is a multiple of 3)
– G = (2 + 0.5 × ADVExtraDelay) × GPMC_FCLK⁽¹⁷⁾ 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⁽¹⁷⁾
– Case GpmcFCLKDivider = 1:
– G = 0.5 × ADVExtraDelay × GPMC_FCLK⁽¹⁷⁾ if (ClkActivationTime and ADVRdOffTime are odd) or (ClkActivationTime and
ADVRdOffTime are even)
– G = (1 + 0.5 × ADVExtraDelay) × GPMC_FCLK⁽¹⁷⁾ otherwise
– Case GpmcFCLKDivider = 2:
– G = 0.5 × ADVExtraDelay × GPMC_FCLK⁽¹⁷⁾ if ((ADVRdOffTime – ClkActivationTime) is a multiple of 3)
– G = (1 + 0.5 × ADVExtraDelay) × GPMC_FCLK⁽¹⁷⁾ if ((ADVRdOffTime – ClkActivationTime – 1) is a multiple of 3)
– G = (2 + 0.5 × ADVExtraDelay) × GPMC_FCLK⁽¹⁷⁾ 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⁽¹⁷⁾
– Case GpmcFCLKDivider = 1:
112 Peripheral Information and Timings
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