Cypress CY7C1339G - Manual (Page 12)

CY7C1339G
Document #: 38-05520 Rev. *F Page 12 of 18
Write Cycle Timing [18, 19]
Note:
19. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW
[A:D]
LOW.
Switching Waveforms (continued)
tCYC
tCL
CLK
ADSP
tADH tADS
ADDRESS
tCH
OE
ADSC
CE
tAH tAS
A1
tCEH tCES
BWE,
BW[A :D]
Data Out (Q)
High-Z
ADV
BURST READ BURST WRITE
D(A2) D(A2 + 1) D(A2 + 1) D(A1) D(A3) D(A3 + 1) D(A3 + 2) D(A2 + 3)
A2 A3
Data In (D)
Extended BURST WRITE
D(A2 + 2)
Single WRITE
tADH tADS
tADH tADS
t
OEHZ
t
ADVH
t
ADVS
tWEH tWES
tDH tDS
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
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