Cypress CY7C1316CV18 - Manual (Page 25)

CY7C1316CV18, CY7C1916CV18
CY7C1318CV18, CY7C1320CV18
Document Number: 001-07160 Rev. *E Page 25 of 29
Switching Waveforms
Figure 5. Read/Write/Deselect Sequence [27, 28, 29]
READ READ READ NOP NOP WRITE WRITE NOP
1 2 3 4 5 6 7 8 9 10
Q40
t
KHCH
tCO
t tHC
t tHA
tSD
tHD
tKHCH
tSD
tHD
DON’T CARE UNDEFINED
tCLZ
tDOH tCHZ
SC
tKH tKHKH tKL tCYC
A0
D20 D21 D30 D31 Q00 Q11 Q01 Q10
A1 A2 A3 A4
Q41
tCCQO
tCQOH
tCCQO
tCQOH
tKL tCYC
K
K
LD
R/W
A
DQ
C
C#
CQ
CQ#
SA
tKH tKHKH
tCQD
tCQDOH
tCQH tCQHCQH
Notes
27. Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, that is, A0 + 1.
28. Outputs are disabled (High-Z) one clock cycle after a NOP.
29. In this example, if address A4 = A3, then data Q40 = D30 and Q41 = D31. Write data is forwarded immediately as read results. This note applies to the whole diagram.
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