CY7C1386DV25, CY7C1386FV25
CY7C1387DV25, CY7C1387FV25
Document Number: 38-05548 Rev. *E Page 10 of 30
Partial Truth Table for Read/Write [5, 10]
Function (CY7C1386DV25/CY7C1386FV25) GW BWE BWDBWCBWBBWA
Read HHXXXX
Read HL HHHH
Write Byte A – (DQA and DQPA) HL HHHL
Write Byte B – (DQB and DQPB)HLHHLH
Write Bytes B, A H L H H L L
Write Byte C – (DQC and DQPC) HLHLHH
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) HLL HHH
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 HLLLLH
Write All Bytes HLLLLL
Write All Bytes LXXXXX
Truth Table for Read/Write [5, 10]
Function (CY7C1387DV25/CY7C1387FV25) GW BWE BWBBWA
Read H H X X
Read H L H H
Write Byte A – (DQA and DQPA)HLHL
Write Byte B – (DQB and DQPB)HLLH
Write All Bytes H L L L
Write All Bytes L X X X
Note
10.Table only lists a partial listing of the byte write combinations. Any combination of BWX is valid appropriate write will be done based on which byte write is active.
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