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參數(shù)資料
| 型號： | TC6216M |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 16 Port 10/100 Unmanaged QoS Ethernet Switch |
| 中文描述： | 非網(wǎng)管16端口10/100以太網(wǎng)交換機(jī)的QoS |
| 文件頁數(shù)： | 3/28頁 |
| 文件大?。?/td> | 568K |
| 代理商： | TC6216M |
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TC6216M
- 3 -
Ver. 2.1
5/24/01
16 Port 10/100 Unmanaged QoS Ethernet Switch
1
Features
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Stand Alone Switch On A Chip
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16 Ethernet 10/100 ports with RMII Interface
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Port 16 is an RMII / MII port
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Embedded 512Kbytes SSRAM packet buffer
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16K MAC address table
!"
Multiple TC6216M can produce larger switches by trunking
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10/100 selectable for each port
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Full / Half Duplex for each port
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Highly integrated switching logic, including the MAC functions on a single ASIC
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Flow-control for Full and Half Duplex
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Three QoS levels checked via IP Header and 802.1Q VLAN Tag and/or selected per
port basis
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Maximum throughput
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Broadcast throttling
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Serial EEPROM Interface
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MDIO master for PHY configuration / polling
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3.3V/1.8V dual voltage power
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0.6 Watt power consumption
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0.18 micron technology
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Packaged in PQFP 208
2
Description
TC6216M is a stand-alone 16 ports 10/100 unmanaged switch controller designed for low cost high
performance solutions. In addition to the basic functions of unmanaged switches it provides features usually
associated with managed switches, at very high performance levels. TC6216M offers full wire-speed switching
on all 16 ports, self-learning of up to 16K MAC addresses, highly optimized flow control for full and half
duplex, evolved traffic priority services, flexible trunking capabilities.
A store-and-forward switching method using a non-blocking architecture is implemented within TC6216M to
improve the availability and bandwidth. The chip embeds a 512 Kbytes SSRAM packet buffer so the only
external components required are the physical layer transceivers. Normal, high and very high priority queues are
implemented for each transmission port.
The chip contains IEEE 802.3 MAC functions for 16 ports supporting both 10 Mbit/s and 100 Mbit/s data rates.
All ports are full and half duplex capable. Each port has its dedicated receive and transmit FIFO’s with necessary
logic to implement flow-control for both duplex modes. TC6216M utilizes PAUSE frames as defined in IEEE
802.3x for full duplex flow control, and executes backpressure for half duplex mode. No packet will be lost
when flow control is operational.
TC6216M provides leading edge QoS with three levels of priority. The priority can be checked via layer 2
(802.1Q VLAN Tagging) and/or layer 3 (IP Header TOS bits). Port based priority is also provided to enable user
selectable traffic prioritization. Port based priority ensures transmission with precedence for all packets incoming
from selected port(s). This feature allows effective video switching in multimedia applications and improved
support for voice over packet applications.
The chip handles a 16K MAC address-lookup table with searching, self-learning, automatic aging, at a very high
speed. Forwarding rules are implemented according with IEEE 802.1d specifications. TC6216M also provides
filtering capability for bad packets, only good CRC and valid sized packets will be forwarded.
Larger switches can be produced using TC6216M’s trunking capabilities. Two trunk groups of up to four ports
each can be setup with TC6216M. Several load balancing schemes are provided through pins and EEPROM
configuration.
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