CY7C1355C
CY7C1357C
Document #: 38-05539 Rev. *E
Page 10 of 28
NOP/WRITE ABORT (Begin Burst)
None
L
H
L
L
L
L
H
X
L
L->H
Tri-State
WRITE ABORT (Continue Burst)
Next
X
X
X
L
H
X
H
X
L
L->H
Tri-State
IGNORE CLOCK EDGE (Stall)
Current
X
X
X
L
X
X
X
X
H
L->H
–
SLEEP MODE
None
X
X
X
H
X
X
X
X
X
X
Tri-State
Partial Truth Table for Read/Write
[2, 3, 9]
Function (CY7C1355C)
WE
BW
A
BW
B
BW
C
BW
D
Read
H
X
X
X
X
Write No bytes written
L
H
H
H
H
Write Byte A – (DQ
A
and DQP
A
)
L
L
H
H
H
Write Byte B – (DQ
B
and DQP
B
)
L
H
L
H
H
Write Byte C – (DQ
C
and DQP
C
)
L
H
H
L
H
Write Byte D – (DQ
D
and DQP
D
)
L
H
H
H
L
Write All Bytes
L
L
L
L
L
Truth Table for Read/Write
[2, 3,9]
Function (CY7C1357C)
WE
BW
A
BW
B
Read
H
X
X
Write - No bytes written
L
H
H
Write Byte A – (DQ
A
and DQP
A
)
L
H
H
Write Byte B – (DQ
B
and DQP
B
)
L
H
H
Write All Bytes
L
L
L
Note:
9. Table only lists a partial listing of the byte write combinations. Any combination of BW
X
is valid. Appropriate write will be done based on which byte write is active.
Truth Table
[2, 3, 4, 5, 6, 7, 8]
Operation
Address
Used
CE
1
CE
2
CE
3
ZZ
ADV/LD WE BW
X
OE CEN CLK
DQ
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