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MU9C4320L-90TDC Datasheet

  • MU9C4320L-90TDC

  • 4K x 32 Content Addressable Memory (CAM) with a 32-bit wide ...

  • 449.04KB

  • 32頁

  • MUSIC

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Data Sheet
MU9C4320L ATMCAM
APPLICATION BENEFITS
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High performance VPI/VCI translation for ATM
switches and routers, up to OC-48
Fully deterministic translation, independent from the
size of the list and the length of VPI/VCI
Pipelined architecture for increased throughput
No limitation of the range of legal values for
VPI/VCI, guaranteeing full interoperability
Cell tagging can be performed without any time
penalty
Easy buffer management in 鈥淔ind and Replace鈥?mode
because of the ability to check CLP field during
VPI/VCI translation
No limitation in the amount of associated information
stored with each connection
No time penalty when checking both VPI/VCI and
VPI only connections
DISTINCTIVE CHARACTERISTICS
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4096 x 32-bit Content Addressable Memory (CAM)
70 ns compare and output time per VPI/VCI
32-bit Data I/O port
16-bit Match Address Output port directly addresses
external RAM containing associated data of any
width
Address/Control bus directly
operations for faster throughput
controls
CAM
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Instruction and Status registers for optional software
control
Simultaneously compares Virtual Paths and Virtual
Channels
Cascadable for increased depth
Extensive set of control states for flexibility
JTAG interface
100-pin TQFP package; 3.3 volt operation
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DQ31鈥?
/VB
/E
/CS1
/CS2
/W
/OE
/AV
AC11鈥?
/RESET
TCLK
TMS
TDI
TDO
/TRST
CONTROL
AND
ADDRESS
DECODER
COMPARAND REGISTER
MASK REGISTERS 1鈥?
ADDRESS REGISTER
CONFIGURATION REGISTER
STATUS REGISTER
INSTRUCTION REGISTER
DEVICE SELECT REGISTER
PRIORITY
ENCODER
AND
FLAG
LOGIC
AA11鈥?
PA3鈥?
/FI
/FF
/MI
/MF
/MV
/ MM
4K x 32
CAM
Figure 1: Block Diagram
4K x 1 VP VALIDITY
MUSIC Semiconductors, the MUSIC logo, and the phrase 鈥淢USIC Semiconductors鈥?are
Registered trademarks of MUSIC Semiconductors. MUSIC is a trademark of
MUSIC Semiconductors.
November 13, 2000 Rev. 3

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