Cypress CY7C1346H manual Truth Table for Read/Write2, Function

CY7C1346H

Truth Table (continued)[2, 3, 4, 5, 6, 7]

Next Cycle

Add. Used

CE1

CE2

CE3

ZZ

ADSP

ADSC

ADV

WRITE

OE

CLK

DQ

WRITE Cycle,

Current

X

X

X

L

H

H

H

L

X

L-H

D

Suspend Burst

WRITE Cycle,

Current

H

X

X

L

X

H

H

L

X

L-H

D

Suspend Burst

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 – (DQA and DQPA)	H	L	H	H	H	L
Write Byte B – (DQB and DQPB)	H	L	H	H	L	H
Write Bytes B, A	H	L	H	H	L	L
Write Byte C – (DQC and DQPC)	H	L	H	L	H	H
Write Bytes C, A	H	L	H	L	H	L
Write Bytes C, B	H	L	H	L	L	H
Write Bytes C, B, A	H	L	H	L	L	L
Write Byte D – (DQD and DQPD)	H	L	L	H	H	H
Write Bytes D, A	H	L	L	H	H	L
Write Bytes D, B	H	L	L	H	L	H
Write Bytes D, B, A	H	L	L	H	L	L
Write Bytes D, C	H	L	L	L	H	H
Write Bytes D, C, A	H	L	L	L	H	L
Write Bytes D, C, B	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 #: 38-05672 Rev. *B Page 7 of 16

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