Cypress CY7C1329H Computer Hardware User Manual


 
CY7C1329H
Document #: 38-05673 Rev. *B Page 12 of 16
Write Cycle Timing
[17, 18]
Note:
18.
Full width Write can be initiated by either GW
LOW; or by GW HIGH, BWE LOW and BW
[A : D]
LOW.
Switching Waveforms (continued)
t
CYC
t
CL
CLK
ADSP
t
ADH
t
ADS
ADDRESS
t
CH
OE
ADSC
CE
t
AH
t
AS
A1
t
CEH
t
CES
BWE,
BW[A :D]
D
ata 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
t
ADH
t
ADS
t
ADH
t
ADS
t
OEHZ
t
ADVH
t
ADVS
t
WEH
t
WES
t
DH
t
DS
GW
t
WEH
t
WES
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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