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25
Ingeniería Electrónica
Sistemas Electrónicos Digitales Avanzados
REAL WAVEFORMS: WRITE ACCESS
Outputs:
Delay time max: 7 ns
ARDY test:
Setup time min: 3 ns
Hold time min: 2.3 ns
Setup = 2
Strobe = 3
Not Ready
Hold = 2
BE
Address
Write Data
10
10
9
8
9
8
9
8
9
8
7
7
6
6
ECLKOUT
CEx
EA[21:2]
ED[31:0]
BE[3:0]
ARDY
AOE/SDRAS/SSOE
ARE/SDCAS/SSADS
AWE/SDWE/SSWE
26
Ingeniería Electrónica
Sistemas Electrónicos Digitales Avanzados
PROGRAMMABLE PARAMETERS
All of then are expressed as T
ECLKOUT units:
SETUP
≥ 1
(0 is treated as 1)
STROBE
≥ 1
(0 is treated as 1)
HOLD
≥ 0
TURNAROUND
≥ 0
T
ECLKOUT depends on system design:
For DSK6713: T
ECLKOUT= 50 MHz => TECLKOUT = 20 ns.