CY7C1292DV18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CY7C1294DV18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Write Cycle Descriptions (CY7C1294DV18) [2, 8]

 

 

BWS

0

 

BWS

1

 

BWS

2

 

BWS

3

K

 

K

 

Comments

 

 

L

 

 

L

 

 

L

 

 

L

L-H

-

 

During the Data portion of a Write sequence, all four bytes (D[35:0]) are written

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

into the device.

 

 

L

 

 

L

 

 

L

 

 

L

-

L-H

During the Data portion of a Write sequence, all four bytes (D[35:0]) are written

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

into the device.

 

 

L

 

 

H

 

 

H

 

 

H

L-H

-

 

During the Data portion of a Write sequence, only the lower byte (D[8:0]) is written

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

into the device. D[35:9] will remain unaltered.

 

 

L

 

 

H

 

 

H

 

 

H

-

L-H

During the Data portion of a Write sequence, only the lower byte (D[8:0]) is written

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

into the device. D[35:9] will remain unaltered.

 

 

H

 

 

L

 

 

H

 

 

H

L-H

-

 

During the Data portion of a Write sequence, only the byte (D[17:9]) is written into

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the device. D[8:0] and D[35:18] will remain unaltered.

 

 

H

 

 

L

 

 

H

 

 

H

-

L-H

During the Data portion of a Write sequence, only the byte (D[17:9]) is written into

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the device. D[8:0] and D[35:18] will remain unaltered.

 

 

H

 

 

H

 

 

L

 

 

H

L-H

-

 

During the Data portion of a Write sequence, only the byte (D[26:18]) is written into

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the device. D[17:0] and D[35:27] will remain unaltered.

 

 

H

 

 

H

 

 

L

 

 

H

-

L-H

During the Data portion of a Write sequence, only the byte (D[26:18]) is written into

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the device. D[17:0] and D[35:27] will remain unaltered.

 

 

H

 

 

H

 

 

H

 

 

L

L-H

 

 

 

During the Data portion of a Write sequence, only the byte (D[35:27]) is written into

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the device. D[26:0] will remain unaltered.

 

 

H

 

 

H

 

 

H

 

 

L

-

L-H

During the Data portion of a Write sequence, only the byte (D[35:27]) is written into

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the device. D[26:0] will remain unaltered.

 

 

H

 

 

H

 

 

H

 

 

H

L-H

-

 

No data is written into the device during this portion of a Write operation.

 

 

H

 

 

H

 

 

H

 

 

H

-

L-H

No data is written into the device during this portion of a Write operation.

 

Document #: 001-00350 Rev. *A

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Cypress CY7C1292DV18 manual Write Cycle Descriptions CY7C1294DV18 2