DM385, DM388
SPRS821D –MARCH 2013–REVISED DECEMBER 2013
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Table 8-29. Timing Requirements for GPMC and NOR Flash Interface - Asynchronous Mode
(see Figure 8-27, Figure 8-28 for Non-Multiplexed Mode )
(see Figure 8-29, Figure 8-31 for Multiplexed Mode)
OPP100/OPP120/Turbo/Nitr
o
NO.
UNIT
MIN
MAX
H(1) cycles
6
tacc(DAT)
Data maximum access time (GPMC_FCLK cycles)
Page mode successive data maximum access time (GPMC_FCLK
cycles)
21 tacc1-pgmode(DAT)
22 tacc2-pgmode(DAT)
P(2)
H(1)
cycles
cycles
Page mode first data maximum access time (GPMC_FCLK cycles)
(1) H = AccessTime * (TimeParaGranularity + 1)
(2) P = PageBurstAccessTime * (TimeParaGranularity + 1).
Table 8-30. Switching Characteristics Over Recommended Operating Conditions for GPMC and NOR
Flash Interface - Asynchronous Mode
(see Figure 8-27, Figure 8-28, Figure 8-29, Figure 8-30 for Non-Multiplexed Modes)
(see Figure 8-31, Figure 8-32 for Multiplexed Modes)
OPP100/OPP120/Turb
o/Nitro
NO
.
PARAMETER
UNIT
MIN
MAX
N(1)
A(2)
1
2
4
5
tw(nBEV)
Pulse duration, GPMC_BE0_CLE, GPMC_BE1 valid time
Pulse duration, GPMC_CS[x] low
ns
ns
ns
ns
ns
ns
ns
ns
tw(nCSV)
td(nCSV-nADVIV)
td(nCSV-nOEIV)
Delay time, GPMC_CS[x] valid to GPMC_NADV_ALE invalid
Delay time, GPMC_CS[x] valid to GPMC_OE_RE invalid (single read)
Delay time, GPMC_A[27:0] address bus valid to GPMC_CS[x] valid
Delay time, GPMC_BE0_CLE, GPMC_BE1 valid to GPMC_CS[x] valid
Delay time, GPMC_CS[x] valid to GPMC_ADV_ALE valid
Delay time, GPMC_CS[x] valid to GPMC_OE_RE valid
B - 0.2(3) B + 2.0(3)
C - 0.2(4) C + 2.0(4)
10 td(AV-nCSV)
J - 0.2(5)
J - 0.2(5)
J + 2.0(5)
J + 2.0(5)
11 td(nBEV-nCSV)
13 td(nCSV-nADVV)
14 td(nCSV-nOEV)
K - 0.2(6) K + 2.0(6)
L - 0.2(7)
L + 2.0(7)
Pulse duration, GPMC_A[27:0] address bus invalid between 2 successive R/W
accesses
17 tw(AIV)
G(8)
ns
ns
ns
ns
19 td(nCSV-nOEIV)
21 tw(AV)
Delay time, GPMC_CS[x] valid to GPMC_OE_RE invalid (burst read)
I - 0.2(9)
D(10)
I + 2.0(9)
Pulse duration, GPMC_A[27:0] address bus valid: second, third and fourth
accesses
26 td(nCSV-nWEV)
Delay time, GPMC_CS[x] valid to GPMC_WE valid
E - 0.2(11) E + 2.0(11)
(1) For single read: N = RdCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK
For single write: N = WrCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: N = (RdCycleTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst write: N = (WrCycleTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(2) For single read: A = (CSRdOffTime - CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For single write: A = (CSWrOffTime - CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: A = (CSRdOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst write: A = (CSWrOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(3) = B - nCS Max Delay + nADV Min Delay
For reading: B = ((ADVRdOffTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay - CSExtraDelay)) * GPMC_FCLK
For writing: B = ((ADVWrOffTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay - CSExtraDelay)) * GPMC_FCLK
(4) = C - nCS Max Delay + nOE Min Delay
C = ((OEOffTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay - CSExtraDelay)) * GPMC_FCLK
(5) = J - Address Max Delay + nCS Min Delay
J = (CSOnTime * (TimeParaGranularity + 1) + 0.5 * CSExtraDelay) * GPMC_FCLK
(6) = K - nCS Max Delay + nADV Min Delay
K = ((ADVOnTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay - CSExtraDelay)) * GPMC_FCLK
(7) = L - nCS Max Delay + nOE Min Delay
L = ((OEOnTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay - CSExtraDelay)) * GPMC_FCLK
(8) G = Cycle2CycleDelay * GPMC_FCLK
(9) = I - nCS Max Delay + nOE Min Delay
I = ((OEOffTime + (n - 1) * PageBurstAccessTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay - CSExtraDelay)) *
GPMC_FCLK
(10) D = PageBurstAccessTime * (TimeParaGranularity + 1) * GPMC_FCLK
(11) = E - nCS Max Delay + nWE Min Delay
E = ((WEOnTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay - CSExtraDelay)) * GPMC_FCLK
190
Peripheral Information and Timings
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