Cypress CY7C1305BV25 User Manual
Page 8
CY7C1307BV25
CY7C1305BV25
Document #: 38-05630 Rev. *A
Page 8 of 21
Write Cycle Descriptions
(CY7C1307BV25)
[2, 10]
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.