DRA722_17 Datasheet, PDF (240/408 Pages) Texas Instruments – Infotainment Applications Processor

DRA722, DRA724, DRA725, DRA726
SPRS956B – MARCH 2016 – REVISED JANUARY 2017
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(1) J = AccessTime * (TimeParaGranularity + 1)
Table 7-29. GPMC/NAND Flash Interface Switching Characteristics
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
-
-
GNF0
GNF1
GNF2
GNF3
GNF4
GNF5
GNF6
GNF7
GNF8
GNF9
GNF10
GNF13
GNF14
GNF15
t_r(DO)
t_f(DO)
t_w(nWEV)
t_d(nCSV-nWEV)
t_d(CLEH-nWEV)
t_d(nWEV-DV)
t_d(nWEIV-DIV)
t_{d(nWEIV-CLEIV)}
t_{d(nWEIV-nCSIV)}
t_d(ALEH-nWEV)
t_{d(nWEIV-ALEIV)}
t_c(nWE)
t_d(nCSV-nOEV)
t_w(nOEV)
t_c(nOE)
t_{d(nOEIV-nCSIV)}
Rising time, gpmc_ad[15:0] output data
Fallling time, gpmc_ad[15:0] output data
Pulse duration, gpmc_wen valid time
Delay time, gpmc_cs[7:0] valid to gpmc_wen valid
Delay time, gpmc_ben[1:0] high to gpmc_wen valid
Delay time, gpmc_ad[15:0] valid to gpmc_wen valid
Delay time, gpmc_wen invalid to gpmc_ad[15:0] invalid
Delay time, gpmc_wen invalid to gpmc_ben[1:0] invalid
Delay time, gpmc_wen invalid to gpmc_cs[7:0] invalid
Delay time, gpmc_advn_ale high to gpmc_wen valid
Delay time, gpmc_wen invalid to gpmc_advn_ale invalid
Cycle time, write cycle time
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren valid
Pulse duration, gpmc_oen_ren valid time
Cycle time, read cycle time
Delay time, gpmc_oen_ren invalid to gpmc_cs[7:0] invalid
0.447
4.067
ns
0.43
4.463
ns
A ⁽¹⁾
ns
B - 2 ⁽²⁾ B + 4 ⁽²⁾
ns
C - 2 ⁽³⁾ C + 4 ⁽³⁾
ns
D - 2 ⁽⁴⁾ D + 4 ⁽⁴⁾
ns
E - 2 ⁽⁵⁾ E + 4 ⁽⁵⁾
ns
F - 2 ⁽⁶⁾ F + 4 ⁽⁶⁾
ns
G - 2 ⁽⁷⁾ G + 4 ⁽⁷⁾
ns
C - 2 ⁽³⁾ C + 4 ⁽³⁾
ns
F - 2 ⁽⁶⁾ F + 4 ⁽⁶⁾
ns
H ⁽⁸⁾
ns
I - 2 ⁽⁹⁾
I + 4 ⁽⁹⁾
ns
K ⁽¹⁰⁾
ns
L ⁽¹¹⁾
ns
M - 2 ⁽¹²⁾ M + 4 ⁽¹²⁾
ns
(1) A = (WEOffTime - WEOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(2) B = ((WEOnTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay - CSExtraDelay)) * GPMC_FCLK
(3) C = ((WEOnTime - ADVOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay - ADVExtraDelay)) * GPMC_FCLK
(4) D = (WEOnTime * (TimeParaGranularity + 1) + 0.5 * WEExtraDelay ) * GPMC_FCLK
(5) E = (WrCycleTime - WEOffTime * (TimeParaGranularity + 1) - 0.5 * WEExtraDelay ) * GPMC_FCLK
(6) F = (ADVWrOffTime - WEOffTime * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay - WEExtraDelay ) * GPMC_FCLK
(7) G = (CSWrOffTime - WEOffTime * (TimeParaGranularity + 1) + 0.5 * (CSExtraDelay - WEExtraDelay ) * GPMC_FCLK
(8) H = WrCycleTime * (1 + TimeParaGranularity) * GPMC_FCLK
(9) I = ((OEOffTime + (n - 1) * PageBurstAccessTime - CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay - CSExtraDelay)) *
GPMC_FCLK
(10) K = (OEOffTime - OEOnTime) * (1 + TimeParaGranularity) * GPMC_FCLK
(11) L = RdCycleTime * (1 + TimeParaGranularity) * GPMC_FCLK
(12) M = (CSRdOffTime - OEOffTime * (TimeParaGranularity + 1) + 0.5 * (CSExtraDelay - OEExtraDelay ) * GPMC_FCLK
240 Timing Requirements and Switching Characteristics
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