CY7C1361B
CY7C1363B
Partial Truth Table for Read/Write[3, 8]
Function (CY7C1361B)
Read
Read
Write Byte (A, DQPA)
Write Byte (B, DQPB)
BWD
X
BWC
X
BWB
BWA
X
H
L
H
L
H
L
H
L
H
L
H
L
GW
BWE
H
H
X
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
H
H
H
H
H
H
H
H
L
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
X
Write Bytes (B, A, DQPA, DQPB)
Write Byte (C, DQPC)
Write Bytes (C, A, DQPC, DQPA)
Write Bytes (C, B, DQPC, DQPB)
Write Bytes (C, B, A, DQPC, DQPB, DQPA)
Write Byte (D, DQPD)
Write Bytes (D, A, DQPD, DQPA)
Write Bytes (D, B, DQPD, DQPA)
Write Bytes (D, B, A, DQPD, DQPB, DQPA)
Write Bytes (D, B, DQPD, DQPB)
Write Bytes (D, B, A, DQPD, DQPC, DQPA)
Write Bytes (D, C, A, DQPD, DQPB, DQPA)
Write All Bytes
L
H
H
L
L
H
H
L
L
H
H
L
L
X
H
L
H
L
L
L
L
X
Write All Bytes
X
Truth Table for Read/Write[3]
Function (CY7C1363B)
BWB
BWA
BWE
GW
Read
Read
H
H
X
X
H
L
H
L
H
H
H
H
L
L
L
L
L
X
H
H
L
L
X
Write Byte A – (DQA and DQPA)
Write Byte B – (DQB and DQPB)
Write All Bytes
Write All Bytes
X
Note:
8. Table only lists a partial listing of the byte write combinations. Any Combination of BW is valid Appropriate write will be done based on which byte write is active.
X
Document #: 38-05302 Rev. *B
Page 15 of 34
CYPRESS [ CYPRESS ]
