Cypress Semiconductor CY7C1365C Manual do Utilizador descarregar pdf (Página 10)

CY7C1365C

Document Number: 001-74584 Rev. *C Page 10 of 30

Truth Table for Read/Write

The Truth Table for Read/Write for CY7C1365C follows.

[6, 7]

Function GW BWE BW

Read H H X X X X

Read HLHHHH

Write Byte (A) H L H H H L

Write Byte (B) H L H H L H

Write Bytes (B, A) H L H H L L

Write Byte (C) H L H L H H

Write Bytes (C, A) HLHLHL

Write Bytes (C, B) H L H L L H

Write Bytes (C, B, A) H L H L L L

Write Byte (D) 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, B) H L L L H H

Write Bytes (D, B, A) H L L L H L

Write Bytes (D, C, A) H L L L L H

Write All Bytes H L L L L L

Write All Bytes L X X X X X

Notes

6. X = “Don't Care.” H = Logic HIGH, L = Logic LOW.

7. WRITE

= L when any one or more Byte Write Enable signals (BW

, BW

) and BWE = L or GW = L. WRITE = H when all Byte Write Enable signals (BW

, BW

), BWE, GW = H.

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