CY7C1410AV18, CY7C1425AV18
CY7C1412AV18, CY7C1414AV18
Document #: 38-05615 Rev. *E
Page 11 of 29
Write Cycle Descriptions
The write cycle description table for CY7C1425AV18 follows. [2, 8]
BWS0
K
K
Comments
L
L–H
–
During the Data portion of a write sequence, the single byte (D[8:0]) is written into the device.
L
–
L–H
During the Data portion of a write sequence, the single byte (D[8:0]) is written into the device.
H
L–H
–
No data is written into the device during this portion of a write operation.
H
–
L–H
No data is written into the device during this portion of a write operation.
Write Cycle Descriptions
The write cycle description table for CY7C1414AV18 follows. [2, 8]
BWS0
BWS1
BWS2
BWS3
K
K
Comments
LLLL
L–H
–
During the Data portion of a write sequence, all four bytes (D[35:0]) are written into
the device.
LLLL
–
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] remains 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] remains 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] remains 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] remains 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] remains 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] remains 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] remains 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] remains unaltered.
HHHH
L–H
–
No data is written into the device during this portion of a write operation.
HHHH
–
L–H No data is written into the device during this portion of a write operation.
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