DM385, DM388
SPRS821D –MARCH 2013–REVISED DECEMBER 2013
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Table 8-28. Switching Characteristics Over Recommended Operating Conditions for GPMC and NOR
Flash Interface - Synchronous Mode (continued)
(see Figure 8-21, Figure 8-22, Figure 8-23 for Non-Multiplexed Modes)
(see Figure 8-24, Figure 8-25, Figure 8-26 for Multiplexed Modes)
OPP100/OPP120/Turb
o/Nitro
MIN
I - 2.3(9)
NO.
PARAMETER
UNIT
MAX
I + 4.5(9)
15 td(CLKH-nWE)
16 td(CLKH-Data)
Delay time, GPMC_CLK rising edge to GPMC_WE transition
ns
ns
Delay time, GPMC_CLK rising edge to GPMC_D[15:0] data bus transition
J - 2.3(10) J + 1.9(10)
Delay time, GPMC_CLK rising edge to GPMC_BE0_CLE, GPMC_BE1
transition
18 td(CLKH-nBE)
J - 2.3(10) J + 1.9(10)
ns
19 tw(nCSV)
20 tw(nBEV)
21 tw(nADVV)
Pulse duration, GPMC_CS[x] low
A(11)
C(12)
K(13)
ns
ns
ns
Pulse duration, GPMC_BE0_CLE, GPMC_BE1 low
Pulse duration, GPMC_ADV_ALE low
(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) For single read: A = (CSRdOffTime - CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK period
For burst read: A = (CSRdOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period [n
= page burst access number]
For burst write: A = (CSWrOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period [n
= page burst access number]
(12) For single read: C = RdCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: C = (RdCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK [n = page burst
access number]
For Burst write: C = (WrCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK [n = page burst
access number]
(13) For read: K = (ADVRdOffTime - ADVOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For write: K = (ADVWrOffTime - ADVOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
186
Peripheral Information and Timings
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