Switching waveforms – Cypress CY7C1292DV18 User Manual
Page 20
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
1
2
3
4
5
8
10
6
7
K
RPS
WPS
A
D
READ
READ
WRITE
WRITE
WRITE
NOP
READ
WRITE
NOP
9
A0
tKH
tKHKH
tKL
tCYC
t
tHC
tSA tHA
tSD tHD
SC
t
tSA tHA
tSD tHD
A6
A5
A3
A4
A1
A2
D30
D50
D51
D61
D31
D11
D10
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