Data Sheet
MUAC Routing CoProcessor (RCP) Family
APPLICATION BENEFITS
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Longest Prefix Match searches of IPv4 addresses
28 million IPv4 packets per second supports up to 18
Gb Ethernet or 7 OC-48 ATM ports at wire speed
Exact match on MAC addresses
Processes DA and SA within 190 ns, supporting three
ports of 1 Gb or 34 ports of 100 Mb Ethernet at wire
speed
Mixed mode L3 and L2 single search engine for two
ports at 1 Gb or 29 ports of 100 Mb Ethernet at wire
speed
Directly addresses external
associated data of any width
RAM
containing
DISTINCTIVE CHARACTERISTICS
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4K and 8K x 64-bit words
32-bit ternary or 64-bit binary compares
35 ns deterministic compare and output time
32-bit Data I/O port
16-bit Match Address Output port
Address/Control bus directly controls device
operations for faster operation or higher throughput
Seven selectable mask registers
Synchronous operation
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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Hardware control states directly address memory and
registers; Instruction and Status registers for optional
software control
DQ31–0
/VB
/E
/CS1
/CS2
/W
/OE
/AV
AC Bus
/DSC
/RESET
TCLK
TMS
TDI
TDO
/TRST
CONTROL
AND
ADDRESS
DECODER
COMPARAND REGISTER
MASK REGISTERS 1–7
ADDRESS REGISTER
PA3–0
CONFIGURATION REGISTER
STATUS REGISTER
INSTRUCTION REGISTER
DEVICE SELECT REGISTER
PRIORITY
ENCODER
AND
FLAG
LOGIC
AA Bus
4 K x 64 Word
(MUAC4K64)
8 K x 64 Word
(MUAC8K64)
Address Database
/FI
/F F
/M I
/M F
/MM
Figure 1: Block Diagram
MUSIC Semiconductors, the MUSIC logo, and the phrase “MUSIC Semiconductors” are
Registered trademarks of MUSIC Semiconductors. MUSIC is a trademark of
MUSIC Semiconductors.
March 6, 2001 Rev. 4a
MUSIC [ MUSIC SEMICONDUCTORS ]
