CY7C1292DV18
CY7C1294DV18
Document #: 001-00350 Rev. *A Page 20 of 23
Switching Waveforms[27, 28, 29]
Read/Write/Deselect Sequence
Notes:
27.Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, i.e., A0 + 1.
28.Output are disabled (High-Z) one clock cycle after a NOP.
29.In this example, if address A2 = A1,then data Q20 = D10 and Q21 = D11. Write data is forwarded immediately as read results. This note applies to the whole
diagram.
K
12
34 58
10
67
K
RPS
WPS
A
D
READ READ WRITE WRITEWRITE NOPREAD WRITE NOP
9
A0
tKH tKHKH
tKL tCYC
tt
HC
tSA tHA
tSD tHD
SC t
tSA tHA
tSD tHD
A6A5
A3 A4
A1 A2
D30 D50 D51 D61
D31
D11D10 D60
Q
C
C
DON’T CARE UNDEFINED
t
CQ
CQ
tKHCH
tCO
tKHCH
tCLZ CHZ
tKH
tKL
Q00 Q01 Q20
tKHKH tCYC
Q21 Q40 Q41
tCQD
tDOH
tCCQO
tCQOH
tCCQO
tCQOH
tCQDOH
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