DM383 Datasheet, PDF (177/267 Pages) Texas Instruments – DaVinci Digital Media Processor

DM383
www.ti.com
SPRS870B – APRIL 2013 – REVISED DECEMBER 2013
Table 8-16. Timing Requirements for GPMC and NOR Flash Interface - Asynchronous Mode
(see Figure 8-16, Figure 8-17 for Non-Multiplexed Mode )
(see Figure 8-18, Figure 8-20 for Multiplexed Mode)
NO.
6 t_acc(DAT)
21 t_{acc1-pgmode(DAT)}
22 t_{acc2-pgmode(DAT)}
Data maximum access time (GPMC_FCLK cycles)
Page mode successive data maximum access time (GPMC_FCLK
cycles)
Page mode first data maximum access time (GPMC_FCLK cycles)
OPP100/OPP120/Turbo/Nitr
o
MIN
MAX
H ⁽¹⁾
P ⁽²⁾
H ⁽¹⁾
UNIT
cycles
cycles
cycles
(1) H = AccessTime * (TimeParaGranularity + 1)
(2) P = PageBurstAccessTime * (TimeParaGranularity + 1).
Table 8-17. Switching Characteristics Over Recommended Operating Conditions for GPMC and NOR
Flash Interface - Asynchronous Mode
(see Figure 8-16, Figure 8-17, Figure 8-18, Figure 8-19 for Non-Multiplexed Modes)
(see Figure 8-20, Figure 8-21 for Multiplexed Modes)
NO
.
1 t_w(nBEV)
2 t_w(nCSV)
4 t_{d(nCSV-nADVIV)}
5 t_{d(nCSV-nOEIV)}
10 t_d(AV-nCSV)
11 t_d(nBEV-nCSV)
13 t_{d(nCSV-nADVV)}
14 t_d(nCSV-nOEV)
17 t_w(AIV)
19 t_{d(nCSV-nOEIV)}
21 t_w(AV)
26 t_d(nCSV-nWEV)
PARAMETER
Pulse duration, GPMC_BE0_CLE, GPMC_BE1 valid time
Pulse duration, GPMC_CS[x] low
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
Pulse duration, GPMC_A[27:0] address bus invalid between 2 successive R/W
accesses
Delay time, GPMC_CS[x] valid to GPMC_OE_RE invalid (burst read)
Pulse duration, GPMC_A[27:0] address bus valid: second, third and fourth
accesses
Delay time, GPMC_CS[x] valid to GPMC_WE valid
OPP100/OPP120/Turb
o/Nitro
MIN
B - 0.2⁽³⁾
C - 0.2⁽⁴⁾
J - 0.2⁽⁵⁾
J - 0.2⁽⁵⁾
K - 0.2⁽⁶⁾
L - 0.2⁽⁷⁾
MAX
N ⁽¹⁾
A ⁽²⁾
B + 2.0⁽³⁾
C + 2.0⁽⁴⁾
J + 2.0⁽⁵⁾
J + 2.0⁽⁵⁾
K + 2.0⁽⁶⁾
L + 2.0⁽⁷⁾
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
G ⁽⁸⁾
ns
I - 0.2⁽⁹⁾ I + 2.0⁽⁹⁾ ns
D ⁽¹⁰⁾
ns
E - 0.2⁽¹¹⁾ E + 2.0⁽¹¹⁾ ns
(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
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