Cypress CY7C1354C, CY7C1356C Partial Write Cycle Description, Partial Write Cycle Description, Truth Table

CY7C1354C
CY7C1356C
Document #: 38-05538 Rev. *G Page 9 of 28
NOP/WRITE ABORT (Begin Burst) None L L L L H X L L-H Tri-State
WRITE ABORT (Continue Burst) Next X L H X H X L L-H Tri-State
IGNORE CLOCK EDGE (Stall) Current X L X X X X H L-H -
SLEEP MODE None X H X X X X X X Tri-State
Partial Write Cycle Description[2, 3, 4, 9]
Function (CY7C1354C) WE BWdBWcBWbBWa
Read H X X X X
Write –No bytes written L H H H H
Write Byte a – (DQa and DQPa) L HHHL
Write Byte b – (DQb and DQPb)LHHLH
Write Bytes b, a L H H L L
Write Byte c – (DQc and DQPc)LHLHH
Write Bytes c, a L H L H L
Write Bytes c, b L H L L H
Write Bytes c, b, a L H L L L
Write Byte d – (DQd and DQPd)LLHHH
Write Bytes d, a L L H H L
Write Bytes d, b LLHLH
Write Bytes d, b, a L L H L L
Write Bytes d, c L L L H H
Write Bytes d, c, a L L L H L
Write Bytes d, c, b L L L L H
Write All Bytes L L L L L
Partial Write Cycle Description[2, 3, 4, 9]
Function (CY7C1356C) WE BWbBWa
Read Hxx
Write – No Bytes Written L H H
Write Byte a − (DQa and DQPa) LHL
Write Byte b – (DQb and DQPb) LLH
Write Both 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 done based on which byte write is active.
Truth Table[2, 3, 4, 5, 6, 7, 8]
Operation Address Used CE ZZ ADV/LD WE BWx OE CEN CLK DQ
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