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

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 Page 6 of 15

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