CY7C1380D, CY7C1380F
CY7C1382D, CY7C1382F
Truth Table for Read/Write
Function (CY7C1380D/CY7C1380F)
Read
Read
Write Byte A – (DQ
A
and DQP
A
)
Write Byte B – (DQ
B
and DQP
B
)
Write Bytes B, A
Write Byte C – (DQ
C
and DQP
C
)
Write Bytes C, A
Write Bytes C, B
Write Bytes C, B, A
Write Byte D – (DQ
D
and DQP
D
)
Write Bytes D, A
Write Bytes D, B
Write Bytes D, B, A
Write Bytes D, C
Write Bytes D, C, A
Write Bytes D, C, B
Write All Bytes
Write All Bytes
GW
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
BWE
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
BW
D
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
X
BW
C
X
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
X
BW
B
X
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
X
BW
A
X
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
X
Truth Table for Read/Write
Function (CY7C1382D/CY7C1382F)
Read
Read
Write Byte A – (DQ
A
and DQP
A
)
Write Byte B – (DQ
B
and DQP
B
)
Write Bytes B, A
Write All Bytes
Write All Bytes
GW
H
H
H
H
H
H
L
BWE
H
L
L
L
L
L
X
BW
B
X
H
H
L
L
L
X
BW
A
X
H
L
H
L
L
X
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.
Document #: 38-05543 Rev. *E
Page 10 of 30
CYPRESS [ CYPRESS SEMICONDUCTOR ]
