CY7C1347F
Truth Table
[2, 3, 4, 5, 6]
Next Cycle
Add.
Used
CE
1
X
H
CE
2
X
X
CE
3
X
X
ZZ
L
L
ADSP ADSC ADV WRITE
H
H
H
L
X
H
H
L
OE
X
X
CLK
L-H
L-H
DQ
D
D
WRITE Cycle, Suspend Burst Current
WRITE Cycle, Suspend Burst Current
Partial Truth Table for Read/write
[2, 7]
Function
Read
Read
Write Byte A – DQ
A
Write Byte B – DQ
B
Write Bytes B, A
Write Byte C– DQ
C
Write Bytes C, A
Write Bytes C, B
Write Bytes C, B, A
Write Byte D– DQ
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
Notes:
7. Table only lists a partial listing of the byte write combinations. Any combination of BW
[A:D]
is valid. Appropriate write will be done based on which byte write is active.
Document #: 38-05213 Rev. *D
Page 7 of 19
CYPRESS [ CYPRESS SEMICONDUCTOR ]
