Cypress CY7C1355C, CY7C1357C Partial Truth Table for Read/Write, Truth Table for Read/Write, Truth Table

CY7C1355C
CY7C1357C
Document #: 38-05539 Rev. *E Page 10 of 28
NOP/WRITE ABORT (Begin Burst) None L H L L L L H X L L->H Tri-State
WRITE ABORT (Continue Burst) Next X X X L H X H X L L->H Tri-State
IGNORE CLOCK EDGE (Stall) Current X X X L X X X X H L->H –
SLEEP MODE None X X X H X X X X X X Tri-State
Partial Truth Table for Read/Write[2, 3, 9]
Function (CY7C1355C) WE BWABWBBWCBWD
Read H X X X X
Write No bytes written L H H H H
Write Byte A – (DQA and DQPA)LLHHH
Write Byte B – (DQB and DQPB)LHLHH
Write Byte C – (D QC and DQPC)LHHLH
Write Byte D – (D QD and DQPD)LHHHL
Write All Bytes L L L L L
Truth Table for Read/Write[2, 3,9]
Function (CY7C1357C) WE BWABWB
Read H X X
Write - No bytes written L H H
Write Byte A – (DQA and DQPA)LHH
Write Byte B – (DQB and DQPB)LHH
Write All Bytes L L L
Note:
9. Table only lists a partial listing of the byte write combinations. Any combination of BWX is valid. Appropriate write will be d one based on which byte write is act ive.
Truth Table[2, 3, 4, 5, 6, 7, 8]
Operation Address Used CE1CE2CE3ZZ ADV/LD WE BWXOE CEN CLK DQ
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