IDT723614L20PQFI(2002) Просмотр технического описания (PDF) - Integrated Device Technology

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IDT723614L20PQFI
(Rev.:2002)

CMOS SyncBiFIFO WITH BUS-MATCHING AND BYTE SWAPPING 64 x 36 x 2

Integrated Device Technology 

IDT723614 CMOS SYNCBIFIFO™ WITH BUS-MATCHING

AND BYTE SWAPPING 64 x 36 x 2

COMMERCIAL AND INDUSTRIAL

TEMPERATURE RANGES

BYTE ORDER ON PORT A:

A35A27 A26A18 A17A9

A

B

C

A8A0

D

Write to FIFO1/

Read From FIFO2

BE SIZ1 SIZ0

XL

L

B35B27 B26B18 B17B9

A

B

C

(a) LONG WORD SIZE

B8B0

D

Read from FIFO1/

Write to FIFO2

BE SIZ1 SIZ0

L

LH

BE SIZ1 SIZ0

HLH

BE SIZ1 SIZ0

LHL

BE SIZ1 SIZ0

HHL

B35B27 B26B18 B17B9

A

B

B8B0

1st: Read from FIFO1/

Write to FIFO2

B35B27 B26B18 B17B9

C

D

B8B0

(b) WORD SIZE  BIG-ENDIAN

2nd: Read from FIFO1/

Write to FIFO2

B35B27 B26B18 B17B9

C

B8B0

D

1st: Read from FIFO1/

Write to FIFO2

B35B27 B26B18 B17B9

A

B8B0

B

2nd: Read from FIFO1/

Write to FIFO2

(c) WORD SIZE  LITTLE-ENDIAN

B35B27 B26B18 B17B9

A

B35B27 B26B18 B17B9

B

B8B0

1st: Read from FIFO1/

Write to FIFO2

B8B0

2nd: Read from FIFO1/

Write to FIFO2

B35B27 B26B18 B17B9

C

B8B0

3rd: Read from FIFO1/

Write to FIFO2

B35B27 B26B18 B17B9

D

B8B0

(d) BYTE SIZE  BIG-ENDIAN

B35B27 B26B18 B17B9 B8B0

D

4th: Read from FIFO1/

Write to FIFO2

1st: Read from FIFO1/

Write to FIFO2

B35B27 B26B18

B17B9

B8B0

C

2nd: Read from FIFO1/

Write to FIFO2

B35B27 B26B18

B17B9

B8B0

B

B35B27 B26B18

B17B9

B8B0

A

(d) BYTE SIZE  LITTLE-ENDIAN

3rd: Read from FIFO1/

Write to FIFO2

4th: Read from FIFO1/

Write to FIFO2

3146 fig 01

Figure 2. Dynamic Bus Sizing

13

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