MU9C2480A-90DI(1998) 데이터 시트보기 (PDF) - Music Semiconductors
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MU9C2480A-90DI Datasheet PDF : 28 Pages
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Data Sheet
MU9C2480A/L LANCAMs®
APPLICATION BENEFITS
The 2048 x 64-bit LANCAM facilitates numerous
operations:
Ø New speed grade allows processing of both
DA and SA within 560 ns, equivalent to 111,
10 Base-T or 11, 100 Base-T Ethernet ports
Ø Expanded powerful instruction set for any list
processing needs
Ø Fully compatible with all MUSIC LANCAM
Series, cascadable to any practical length
without performance penalties
Ø Full CAM features allow all operations mask,
on a bit per bit basis
DISTINCTIVE CHARACTERISTICS
Ø 2048 x 64-bit CMOS content-addressable memory
(CAM)
Ø 16-bit I/O
Ø Fast 70 ns compare speed
Ø Dual configuration register set for rapid context
switching
Ø Shiftable Comparand and mask registers assist
in proximate matching algorithms
Ø 16-bit CAM/RAM segments with MUSIC’s patented
partitioning
Ø /MA and /MM output flags to enable faster system
performance
Ø Readable Device ID
Ø Selectable faster operating mode with no wait states
after a no-match
Ø Validity bit setting accessible from the Status
register
Ø Single cycle reset for Segment Control register
Ø 44-pin PLCC package
Ø 5 volt (2480A) or 3.3 volt (2480L) operation
DATA (16)
MU X
DATA (64)
VC C
DQ (15–0)
(1 6)
DATA (16)
TRANS LATE
802 .3 /80 2. 5
DATA (16)
DEM UX
DATA (64)
G ND
/E
/W
/CM
/RE SE T
/EC
CO MMAN DS & STATU S
(1 6)
SO URC E AND
DESTINA TIO N
SEG ME NT
CO UN TER S
CO NTRO L
INSTRUCTIO N (W/O )*
ADD RE SS ADD RE SS
NEXT FRE E AD DRES S (R/O )
CO NTRO L
SEG MEN T CO N TRO L
16
PAG E ADDRE SS (L O CAL)
DEVIC E SE LECT (G LO BAL)
STATU S (1 5-0) (R/O )*
STAT US ( 31-1 6) ( R/O )
REG I STE R S ET
11
MATCH ADDR
& /MA FLAG
/MM, /FL
12
2
CO MPARA ND*
MASK 1
MASK 2
CAM ARRAY
204 8 W O R DS
X 64 BI TS
Block Diagram
LANCAM, the MUSIC logo, and the phrase “MUSIC Semiconductors” are registered trademarks of MUSIC Semiconductors. MUSIC is
a trademark of MUSIC Semiconductors. Certain features of this device are patented under US Patent 5,383,146.
/MA
/MM
2
/FF
MATCH
/FI
AND
FLAG
LO G IC
/MF
/MI
1 October 1998 Rev. 1a
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