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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
KK 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.
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