Cypress CY7C1382D Computer Hardware User Manual


 
CY7C1380D, CY7C1382D
CY7C1380F, CY7C1382F
Document #: 38-05543 Rev. *F Page 23 of 34
Switching Waveforms
Figure 10. Read Cycle Timing
[26]
t
CYC
t
CL
CLK
ADSP
t
ADH
t
ADS
ADDRESS
t
CH
OE
ADSC
CE
t
AH
t
AS
A1
t
CEH
t
CES
GW, BWE,
BWx
Data Out (Q)
High-Z
t
CLZ
t
DOH
t
CO
ADV
t
OEHZ
t
CO
Single READ BURST READ
t
OEV
t
OELZ
t
CHZ
ADV
suspends
burst.
Burst wraps around
to its initial state
t
ADVH
t
ADVS
t
WEH
t
WES
t
ADH
t
ADS
Q(A2) Q(A2 + 1) Q(A2 + 2)
Q(A1)
Q(A2) Q(A2 + 1)Q(A2 + 3)
A2 A3
Deselect
cycle
Burst continued with
new base address
DON’T CARE
UNDEFINED
Note
26. On this diagram, when CE
is LOW: CE
1
is LOW, CE
2
is HIGH and CE
3
is LOW. When CE is HIGH: CE
1
is HIGH or CE
2
is LOW or CE
3
is HIGH.
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