CY7C43644AV
CY7C43664AV
CY7C43684AV
.
Table 2.
BYTE ORDER ON PORT A:
BE BM SIZE
X
L
X
BE BM SIZE
H
H
L
BE BM SIZE
L
H
L
BE BM SIZE
H
H
H
BE BM SIZE
L
H
H
A27–35
A
B27–35
A
A18–26
B
B18–26
B
A9–17
C
B9–17
C
A0–8
D
B0–8
D
Write to FIFO
Read from FIFO
(a) LONG-WORD SIZE
B27–35
B27–35
B18–26
B18–26
B9–17
A
B9–17
C
B0–8
B
B0–8
D
(b) WORD SIZE – BIG ENDIAN
1st: Read from FIFO
2nd: Read from FIFO
B27–35
B27–35
B18–26
B18–26
B9–17
C
B9–17
A
B0–8
D
B0–8
B
1st: Read from FIFO
2nd: Read from FIFO
(c) WORD SIZE – LITTLE ENDIAN
B27–35
B18–26
B9–17
B27–35
B18–26
B9–17
B27–35
B18–26
B9–17
B27–35
B18–26
B9–17
B0–8
A
B0–8
B
B0–8
C
B0–8
D
(d) BYTE SIZE – BIG ENDIAN
1st: Read from FIFO
2nd: Read from FIFO
3rd: Read from FIFO
4th: Read from FIFO
B27–35
B18–26
B9–17
B27–35
B18–26
B9–17
B27–35
B18–26
B9–17
B27–35
B18–26
B9–17
B0–8
D
B0–8
C
B0–8
B
B0–8
A
(e) BYTE SIZE – LITTLE ENDIAN
1st: Read from FIFO
2nd: Read from FIFO
3rd: Read from FIFO
4th: Read from FIFO
Document #: 38-06025 Rev. *C
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