m27481 Mindspeed Technologies, m27481 Datasheet - Page 3

• Manufacturer Part Number: m27481
• Description: 3rd Generation Traffic Stream Processor ?tsp3
• Manufacturer: Mindspeed Technologies

Applications
The M27481 TSP3 fits within a variety of system architectures
spanning many equipment categories including access aggre-
gation (DSLAM, CMTS, FTTx, NG DLC), voice and wireless
gateways, fixed and mobile wireless equipment, routers
10/100/1000
Addressing
MII/RMII/
GMII/TBI
Extended
125MHz
66MHz
8/16b
32b
•Configuration
Control Traffic
Uplink
Connection
UTOPIA/POS
•Exception
UTOPIA/POS
Handling
Ethernet
Ethernet
•Control
System
and/or
PCI
HOST
User
L2/3
L2/3
PCI Slave/
Ulink 0
Ulink 1
MAC0
MAC1
via Ethernet
PRX
connection
Rx
Rx
Rx
Rx
10/100/1000
or PCI
Ethernet
Ethernet
Host
Figure 2: Typical Application: IP-DSLAM
Controller
Optional
Figure 1: M27481 TSP3 Architecture
Channel
Descr.
Lookup
Engine
Internal
TCAM
CAM
CAM
+
SDRAM
SDRAM
Buffer
Mgmt
Engine
M27480
M27481
M27481
M27481 TSP3
Processor
Octave
333 MHz
Channel
Context
RAM
64-256MB DDR
SDRAM w/ECC
Controller
SDRAM
PROM
(optional)
™
Boot
TCAM
(optional)
(enterprise and edge), multi-service switches, and Ethernet
switches. The support of proprietary data formats and headers
simplifies hardware development and reduces cost by absorb-
ing peripheral FPGA devices. This device can also be used as a
backplane or control plane SAR.
TCAM
Integrated
SRAM
16b, L2/3, up to 125Mhz
6b addressing
UTOPIA
UTOPIA
Controller
Autoboot
EEPROM
Serial
Ulink 1
Master
Ulin k 0
MAC0
MAC1
PCI
Tx
Tx
Tx
Tx
I
2
C
UTOPIA/POS
UTOPIA/POS
Downlink
Ethernet
Ethernet
PCI
L2/3
L2/3
Modems
Modems
xDSL
xDSL
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