DRA790 Datasheet, PDF (203/436 Pages) Texas Instruments – Infotainment Applications Processor

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DRA790, DRA791
DRA793, DRA797
SPRS968A – AUGUST 2016 – REVISED FEBRUARY 2017
Table 5-47. GPMC/NOR Flash Interface Timing Requirements - Asynchronous Mode
NO. PARAMETER
DESCRIPTION
MIN
FA5
FA20
t_acc(DAT)
t_{acc1-pgmode(DAT)}
Data Maximum Access Time (GPMC_FCLK cycles)
Page Mode Successive Data Maximum Access Time (GPMC_FCLK
cycles)
FA21 t_{acc2-pgmode(DAT)} Page Mode First Data Maximum Access Time (GPMC_FCLK cycles)
-
t_su(DV-OEH)
Setup time, read gpmc_ad[15:0] valid before gpmc_oen_ren high
1.9
-
t_h(OEH-DV)
Hold time, read gpmc_ad[15:0] valid after gpmc_oen_ren high
1
(1) H = Access Time × (TimeParaGranularity + 1)
(2) P = PageBurstAccessTime × (TimeParaGranularity + 1)
MAX
H ⁽¹⁾
P ⁽²⁾
H ⁽¹⁾
UNIT
cycles
cycles
cycles
ns
ns
Table 5-48. GPMC/NOR Flash Interface Switching Characteristics - Asynchronous Mode
NO. PARAMETER
DESCRIPTION
MIN
MAX UNIT
- t_r(DO)
- t_f(DO)
FA0 t_w(nBEV)
FA1 t_w(nCSV)
FA3 t_{d(nCSV-nADVIV)}
FA4 t_{d(nCSV-nOEIV)}
FA9 t_d(AV-nCSV)
FA10 t_d(nBEV-nCSV)
FA12 t_{d(nCSV-nADVV)}
FA13 t_d(nCSV-nOEV)
FA16 t_w(AIV)
FA18 t_{d(nCSV-nOEIV)}
FA20 t_w(AV)
FA25 t_d(nCSV-nWEV)
FA27 t_{d(nCSV-nWEIV)}
FA28 t_d(nWEV-DV)
FA29 t_d(DV-nCSV)
FA37 t_d(nOEV-AIV)
Rising time, gpmc_ad[15:0] output data
Fallling time, gpmc_ad[15:0] output data
Pulse duration, gpmc_ben[1:0] valid time
Pulse duration, gpmc_cs[7:0] low
Delay time, gpmc_cs[7:0] valid to gpmc_advn_ale invalid
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren invalid (Single read)
Delay time, address bus valid to gpmc_cs[7:0] valid
Delay time, gpmc_ben[1:0] valid to gpmc_cs[7:0] valid
Delay time, gpmc_cs[7:0] valid to gpmc_advn_ale valid
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren valid
Pulse duration, address invalid between 2 successive R/W accesses
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren invalid (Burst read)
Pulse duration, address valid : 2nd, 3rd and 4th accesses
Delay time, gpmc_cs[7:0] valid to gpmc_wen valid
Delay time, gpmc_cs[7:0] valid to gpmc_wen invalid
Delay time, gpmc_ wen valid to data bus valid
Delay time, data bus valid to gpmc_cs[7:0] valid
Delay time, gpmc_oen_ren valid to gpmc_ad[15:0] multiplexed address bus
phase end
0.447
4.067
ns
0.43
4.463
ns
N ⁽¹⁾
ns
A ⁽²⁾
ns
B - 2 ⁽³⁾
B + 4 ⁽³⁾
ns
C - 2 ⁽⁴⁾
C + 4 ⁽⁴⁾
ns
J - 2 ⁽⁵⁾
J + 4 ⁽⁵⁾
ns
J - 2 ⁽⁵⁾
J + 4 ⁽⁵⁾
ns
K - 2 ⁽⁶⁾
K + 4 ⁽⁶⁾
ns
L - 2 ⁽⁷⁾
L + 4 ⁽⁷⁾
ns
G ⁽⁸⁾
ns
I - 2 ⁽⁹⁾
I + 4 ⁽⁹⁾
ns
D ⁽¹⁰⁾
ns
E - 2 ⁽¹¹⁾
E + 4 ⁽¹¹⁾
ns
F - 2 ⁽¹²⁾
F + 4 ⁽¹²⁾
ns
2
ns
J - 2 ⁽⁵⁾
J + 4 ⁽⁵⁾
ns
2
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) 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 = ((OEOffTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (OEExtraDelay - CSExtraDelay)) × GPMC_FCLK
(5) J = (CSOnTime × (TimeParaGranularity + 1) + 0.5 × CSExtraDelay) × GPMC_FCLK
(6) K = ((ADVOnTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (ADVExtraDelay - CSExtraDelay)) × GPMC_FCLK
(7) L = ((OEOnTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (OEExtraDelay - CSExtraDelay)) × GPMC_FCLK
(8) G = Cycle2CycleDelay × GPMC_FCLK × (TimeParaGranularity +1)
(9) I = ((OEOffTime + (n - 1) × PageBurstAccessTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (OEExtraDelay - CSExtraDelay)) ×
GPMC_FCLK
(10) D = PageBurstAccessTime × (TimeParaGranularity + 1) × GPMC_FCLK
(11) E = ((WEOnTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (WEExtraDelay - CSExtraDelay)) × GPMC_FCLK
(12) F = ((WEOffTime - CSOnTime) × (TimeParaGranularity + 1) + 0.5 × (WEExtraDelay - CSExtraDelay)) × GPMC_FCLK
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Specifications 203