CY7C1344H

Truth Table for Read/Write[2, 3]

Function

GW

BWE

BWD

BWC

BWB

BWA

Read

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

Document #: 001-00211 Rev. *B

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Cypress CY7C1344H manual Truth Table for Read/Write2, Function, BWE BW D BW C BW B BW a