DRA790 Datasheet, PDF (194/436 Pages) Texas Instruments – Infotainment Applications Processor

DRA790, DRA791
DRA793, DRA797
SPRS968A – AUGUST 2016 – REVISED FEBRUARY 2017
www.ti.com
Table 5-45. GPMC/NOR Flash Interface Timing Requirements - Synchronous Mode - Alternate (continued)
NO.
F21
F22
PARAMETER
t_{su(waitV-clkH)}
t_{h(clkH-waitV)}
DESCRIPTION
Setup time, gpmc_wait[1:0] valid before gpmc_clk high
Hold Time, gpmc_wait[1:0] valid after gpmc_clk high
MIN
MAX UNIT
2.5
ns
1.9
ns
Table 5-46. GPMC/NOR Flash Interface Switching Characteristics - Synchronous Mode - Alternate
NO. PARAMETER
DESCRIPTION
F0 t_c(clk)
Cycle time, output clock gpmc_clk period ⁽¹³⁾
F2 t_d(clkH-nCSV)
Delay time, gpmc_clk rising edge to gpmc_cs[7:0] transition
F3 t_{d(clkH-nCSIV)}
Delay time, gpmc_clk rising edge to gpmc_cs[7:0] invalid
F4 t_d(ADDV-clk)
Delay time, gpmc_a[27:0] address bus valid to gpmc_clk first edge
F5 t_{d(clkH-ADDIV)}
Delay time, gpmc_clk rising edge to gpmc_a[27:0] gpmc address bus invalid
F6 t_d(nBEV-clk)
Delay time, gpmc_ben[1:0] valid to gpmc_clk rising edge
F7 t_{d(clkH-nBEIV)}
Delay time, gpmc_clk rising edge to gpmc_ben[1:0] invalid
F8 t_d(clkH-nADV)
Delay time, gpmc_clk rising edge to gpmc_advn_ale transition
F9 t_{d(clkH-nADVIV)}
Delay time, gpmc_clk rising edge to gpmc_advn_ale invalid
F10 t_d(clkH-nOE)
Delay time, gpmc_clk rising edge to gpmc_oen_ren transition
F11 t_{d(clkH-nOEIV)}
Delay time, gpmc_clk rising edge to gpmc_oen_ren invalid
F14 t_d(clkH-nWE)
Delay time, gpmc_clk rising edge to gpmc_wen transition
F15 t_d(clkH-Data)
Delay time, gpmc_clk rising edge to gpmc_ad[15:0] data bus transition
F17 t_d(clkH-nBE)
Delay time, gpmc_clk rising edge to gpmc_ben[1:0] transition
F18 t_w(nCSV)
Pulse duration, gpmc_cs[7:0] low
F19 t_w(nBEV)
Pulse duration, gpmc_ben[1:0] low
F20
F23
t_w(nADVV)
t_d(CLK-GPIO)
Pulse duration, gpmc_advn_ale low
Delay time, gpmc_clk transition to gpio6_16.clkout1 transition ⁽¹⁴⁾
MIN
15.04
F+0.6 ⁽⁷⁾
E+0.6 ⁽⁶⁾
B-0.7 ⁽³⁾
-0.7
B-7.0
D-0.4
G+0.7 ⁽⁸⁾
D+0.7 ⁽⁵⁾
H+0.7 ⁽⁹⁾
E+0.7 ⁽⁶⁾
I+0.7 ⁽¹⁰⁾
J-0.4 ⁽¹¹⁾
J-0.4 ⁽¹¹⁾
A ⁽²⁾
C ⁽⁴⁾
K ⁽¹²⁾
0.5
MAX
F+7.0 ⁽⁷⁾
E+7.0 ⁽⁶⁾
B+7.0 ⁽³⁾
B+0.4
D+7.0
G+6.1 ⁽⁸⁾
D+6.1 ⁽⁵⁾
H+5.1 ⁽⁹⁾
E+5.1 ⁽⁶⁾
I+6.1 ⁽¹⁰⁾
J+4.9 ⁽¹¹⁾
J+4.9 ⁽¹¹⁾
7.5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(1) Total GPMC load on any signal at 3.3V must not exceed 10pF.
(2) 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
For burst write: A = (CSWrOffTime - CSOnTime + (n - 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK period
with n the page burst access number.
(3) B = ClkActivationTime × GPMC_FCLK
(4) For single read: C = RdCycleTime × (TimeParaGranularity + 1) × GPMC_FCLK
For burst read: C = (RdCycleTime + (n - 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK
For Burst write: C = (WrCycleTime + (n - 1) × PageBurstAccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK with n the page burst
access number.
(5) For single read: D = (RdCycleTime - AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK
For burst read: D = (RdCycleTime - AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK
For burst write: D = (WrCycleTime - AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK
(6) For single read: E = (CSRdOffTime - AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK
For burst read: E = (CSRdOffTime - AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK
For burst write: E = (CSWrOffTime - AccessTime) × (TimeParaGranularity + 1) × GPMC_FCLK
(7) For nCS falling edge (CS activated):
Case GpmcFCLKDivider = 0 :
F = 0.5 × CSExtraDelay × GPMC_FCLK Case GpmcFCLKDivider = 1:
F = 0.5 × CSExtraDelay × GPMC_FCLK if (ClkActivationTime and CSOnTime are odd) or (ClkActivationTime and CSOnTime are even)
F = (1 + 0.5 × CSExtraDelay) × GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
F = 0.5 × CSExtraDelay × GPMC_FCLK if ((CSOnTime - ClkActivationTime) is a multiple of 3)
F = (1 + 0.5 × CSExtraDelay) × GPMC_FCLK if ((CSOnTime - ClkActivationTime - 1) is a multiple of 3)
F = (2 + 0.5 × CSExtraDelay) × GPMC_FCLK if ((CSOnTime - ClkActivationTime - 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
F = 0.5 × CSExtraDelay × GPMC_FCLK if ((CSOnTime - ClkActivationTime) is a multiple of 4)
F = (1 + 0.5 × CSExtraDelay) × GPMC_FCLK if ((CSOnTime - ClkActivationTime - 1) is a multiple of 4)
F = (2 + 0.5 × CSExtraDelay) × GPMC_FCLK if ((CSOnTime - ClkActivationTime - 2) is a multiple of 4)
F = (3 + 0.5 × CSExtraDelay) × GPMC_FCLK if ((CSOnTime - ClkActivationTime - 3) is a multiple of 4)
194 Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA790 DRA791 DRA793 DRA797