Switching waveforms, Read, Read write write nop nop – Cypress Perform CY7C1413BV18 User Manual
Page 25
CY7C1411BV18, CY7C1426BV18
CY7C1413BV18, CY7C1415BV18
Document Number: 001-07037 Rev. *D
Page 25 of 30
Switching Waveforms
Figure 5. Read/Write/Deselect Sequence
K
1
2
3
4
5
6
7
RPS
WPS
A
Q
D
C
C
READ
READ
WRITE
WRITE
NOP
NOP
DON’T CARE
UNDEFINED
CQ
CQ
K
A0
A1
t KH
t KHKH
tKL
t
CYC
t
tHC
tSA
tHA
A2
SC
t
t HC
SC
A3
t KHCH
t KHCH
tCQD
t
CLZ
DOH
t
CHZ
t
t
tKL
t CYC
t CCQO
t
CCQO
t
CQOH
t CQOH
KHKH
KH
Q00
Q03
Q01
Q02
Q20
Q23
Q21
Q22
tCO
tCQDOH
t
t CQH
t CQHCQH
D10
D11
D12
D13
t
SD
tHD
tSD
t HD
D30
D31
D32
D33
Notes
29. Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, that is, A0+1.
30. Outputs are disabled (High-Z) one clock cycle after a NOP.
31. In this example, if address A2 = A1, then data Q20 = D10, Q21 = D11, Q22 = D12, and Q23 = D13. Write data is forwarded immediately as read results. This note
applies to the whole diagram.