CY7C1345F データシートの表示（PDF） - Cypress Semiconductor
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CY7C1345F Datasheet PDF : 17 Pages
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CY7C1345F
Partial Truth Table for Read/Write[2, 7]
Read
Function
GW
BWE
BWD
BWC
BWB
BWA
H
H
X
X
X
X
Read
H
L
H
H
H
H
Write Byte (A, DQPA)
H
L
H
H
H
L
Write Byte (B, DQPB)
H
L
H
H
L
H
Write Bytes (B, A, DQPA, DQPB)
H
L
H
H
L
L
Write Byte (C, DQPC)
H
L
H
L
H
H
Write Bytes (C, A, DQPC, DQPA)
H
L
H
L
H
L
Write Bytes (C, B, DQPC, DQPB)
H
L
H
L
L
H
Write Bytes (C, B, A, DQPC, DQPB, DQPA)
H
L
H
L
L
L
Write Byte (D, DQPD)
H
L
L
H
H
H
Write Bytes (D, A, DQPD, DQPA)
H
L
L
H
H
L
Write Bytes (D, B, DQPD, DQPA)
H
L
L
H
L
H
Write Bytes (D, B, A, DQPD, DQPB, DQPA)
H
L
L
H
L
L
Write Bytes (D, B, DQPD, DQPB)
H
L
L
L
H
H
Write Bytes (D, B, A, DQPD, DQPC, DQPA)
H
L
L
L
H
L
Write Bytes (D, C, A, DQPD, DQPB, DQPA)
H
L
L
L
L
H
Write All Bytes
H
L
L
L
L
L
Write All Bytes
L
X
X
X
X
X
Note:
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 #: 38-05214 Rev. *C
Page 7 of 17
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