Cypress CY7C1298H - Manual (Page 12)

CY7C1298H
Document #: 38-05665 Rev. *B Page 12 of 16
Write Timing
[16, 17]
Note:
17. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW
[A:B]
LOW.
Switching Waveforms (continued)
tCYC
tCL
CLK
ADSP
tADH tADS
ADDRESS
tCH
OE
ADSC
CE
tAH tAS
A1
tCEH tCES
BWE,
BW [A:B]
ADV
BURST READ BURST WRITE
D(A2) D(A2 + 1) D(A2 + 1) D(A3) D(A3 + 1) D(A3 + 2) D(A2 + 3)
A2 A3
Extended BURST WRITE
D(A2 + 2)
Single WRITE
tADH tADS
tADH tADS
t
OEHZ
tADVH tADVS
tWEH tWES
t
DH
t
DS
GW
tWEH tWES
Byte write signals are ignored for first cycle when
ADSP initiates burst
ADSC extends burst
ADV suspends burst
DON’T CARE UNDEFINED
D(A1) High-Z Data in (D)
Data Out (Q)
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