lancam Music Semiconductors, Inc., lancam Datasheet
lancam
Manufacturer Part Number
lancam
Description
Music Lancam A/l Series
Manufacturer
Music Semiconductors, Inc.
Datasheet
1.LANCAM.pdf
(32 pages)
APPLICATION BENEFITS
The 256x64 to 4Kx64 LANCAM A/L series facilitate
numerous operations:
•
•
•
•
•
•
•
(Use functional compatible LANCAM B family for new designs)
MUSIC Semiconductors, the MUSIC logo, and the phrase "MUSIC Semiconductors" are
Registered trademarks of MUSIC Semiconductors. MUSIC is a trademark of
MUSIC Semiconductors.
/RESET
Fast speed allows processing of both DA and SA
within 450 ns, equivalent to 138 ports of 10 Base-T or
13 ports of 100 Base-T Ethernet (50 ns device)
Full CAM features allow all operations to be masked
on a bit-by-bit basis
Powerful instruction set for any list processing need
Shiftable Comparand and Mask registers assist in
proximate matching algorithms
Cascadable to any practical length with no
performance penalties
Industrial temperature grades for harsh environments
Available in 3.3 Volt for lower power systems
/EC
DQ (15—0)
/CM
/W
/E
LANCAM A/L series
CONTROL
(16)
16
COMMANDS &
STATUS (16)
NEXT FREE ADDRESS (R/O)
DEVICE SELECT (GLOBAL)
PAGE ADDRESS (LOCAL)
DATA (16)
SEGMENT CONTROL
STATUS (31-16) (R/O)
INSTRUCTION (W/O)
STATUS (15-0) (R/O)
REGISTER SET
Figure 1: LANCAM B Family Block Diagram
CONTROL
ADDRESS
DATA (16)
TRANSLATE
802.3 / 802.5
MUX
MATCH ADDR &
DATA (16)
/MA FLAG
/MM, /FL
SOURCE AND
DESTINATION
N
COUNTERS
SEGMENT
DISTINCTIVE CHARACTERISTICS
•
•
•
•
•
•
•
•
•
•
•
•
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DATA (64)
DEMUX
2
High density CMOS Content Addressable Memory
(CAM)
Available in the following depths: 256 (3480), 512
(5480), 1K (1480), 2K (2480) and 4K (4480) words.
64-bit per word memory organization
16-bit I/O
Fast 50 ns compare speed (1480A and 2480A)
Dual configuration register set for rapid context
switching
16-bit CAM/RAM segments with MUSIC’s patented
partitioning
/MA and /MM output flags to enable faster system
performance
Readable Device ID
Selectable faster operating mode with no wait states
after a no-match
Validity bit setting accessible from the Status register
Single cycle reset for Segment Control register
5 Volt (A series) or 3.3 Volt (L series) operation
44-pin PLCC package
(also available in Lead-Free package upon request)
N+1
(not recommended for new designs)
DATA (64)
COMPARAND
CAM ARRAY
2
X 64 BITS
N
MASK 1
MASK 2
WORDS
VCC
GND
April 18, 2005 Rev. 1
MATCH
LOGIC
FLAG
AND
Data Sheet
/MA
/MM
2
/FF
/FI
/MF
/MI
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