Altera Cyclone III Development Board Manual do Utilizador descarregar pdf (Página 67)

Chapter 2: Board Components 2–57

On-Board Memory

© March 2009 Altera Corporation Cyclone III 3C120 Development Board Reference Manual

Figure 2–15 and Figure 2–16 show the Samsung device read and write access

waveforms, respectively.

Figure 2–15. SRAM Read Timing Waveforms

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Data Out

OE

UB, LB

CS

ADDR

ADV

CLK

WAIT

Figure 2–16. SRAM Write Timing Waveforms

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Data In

WE

UB, LB

CS

ADDR

ADV

CLK

WAIT

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 79 80

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