IDT723656 Datasheet, PDF (18/39 Pages) Integrated Device Technology – CMOS TRIPLE BUS SyncFIFOTM WITH BUS-MATCHING

IDT723656/723666/723676 CMOS TRIPLE BUS SyncFIFO^TM WITH
BUS MATCHING 2,048 x 36 x 2, 4,096 x 36 x 2 and 8,192 x 36 x 2
BYTE ORDER ON PORT A:
A35 A27
A
A26 A18
B
A17 A9
C
COMMERCIAL TEMPERATURE RANGE
A8 A0
D _{Read from FIFO2}
BYTE ORDER ON PORT C:
BE SIZEC
H
L
BE SIZEC
L
L
BE SIZEC
H
H
BE SIZEC
L
H
C17 C9
A
C8  C0
B
C17 C9
C
C8  C0
D
(b) WORD SIZE  BIG ENDIAN
C17 C9
C8  C0
C
D
C17 C9
A
C8  C0
B
(c) WORD SIZE  LITTLE ENDIAN
C17 C9
C8  C0
A
C17 C9
C17 C9
C8  C0
B
C8  C0
C
C17 C9
C8  C0
D
(d) BYTE SIZE  BIG ENDIAN
C17 C9
C8  C0
D
C17 C9
C8  C0
C
C17 C9
C8  C0
B
C17 C9
C8  C0
A
(e) BYTE SIZE  LITTLE ENDIAN
Figure 3. Port C Bus Sizing
18
1st: Write to FIFO2
2nd: Write to FIFO2
1st: Write to FIFO2
2nd: Write to FIFO2
1st: Write to FIFO2
2nd: Write to FIFO2
3rd: Write to FIFO2
4th: Write to FIFO2
1st: Write to FIFO2
2nd: Write to FIFO2
3rd: Write to FIFO2
4th: Write to FIFO2
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