Write cycle descriptions – Cypress CY7C1292DV18 User Manual
Page 8
CY7C1292DV18
CY7C1294DV18
Document #: 001-00350 Rev. *A
Page 8 of 23
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.