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參數(shù)資料
| 型號： | RTL8309SB |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SINGLE-CHIP 9-PORT 10/100MBPS SWITCH CONTROLLER |
| 中文描述： | 單芯片9口10/100Mbps開關(guān)控制器 |
| 文件頁數(shù)： | 17/115頁 |
| 文件大?。?/td> | 866K |
| 代理商： | RTL8309SB |
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RTL8309SB
Datasheet
Single-Chip 9-Port 10/100Mbps Switch Controller
2
Track ID: JATR-1076-21 Rev. 1.4
LED combinations to fit different applications. Eight combinations of link, activity, speed, duplex, and
collision, are available. Bi-color LED mode is also supported on the Link/Act LED.
The RTL8309SB supports standard 802.3x flow control frames for full duplex, and optional backpressure
for half duplex. It determines when to invoke the flow control mechanism by checking the availability of
system resources, including the packet buffers and transmitting queues. If one of the forwarding ports is
blocked, or system resources are unavailable, broadcast frames will be dropped according to the system
configuration. The RTL8309SB support two types of dropping methods. The input dropping method will
not forward broadcast packets to any output ports and will drop these packets directly. The output
dropping method
will forward broadcast packets to non-blocked ports only.
To improve real-time and multimedia networking applications, the RTL8309SB supports four types of
QoS (Quality of Service). These are based on (1) Port-based priority, (2) 802.1p/Q VLAN priority tag, (3)
TOS field in IPv4 header, (4) Specific IP address. Each output port supports a weighted ratio of high-
priority and low-priority queues to fit bandwidth requirements in different applications.
The RTL8309SB provides 802.1Q port-based VLAN operation to separate logical connectivity from
physical connectivity. Each port may be set to any topology via EEPROM upon reset or SMI after reset.
The RTL8309SB also provides options to meet special application requirements. The first option is the
ARP VLAN function, which is used to select to broadcast ARP frames to all VLANs or only forward
ARP frames to the originating VLAN. The second option is the Leaky VLAN function, which is used to
select to send unicast frames to other VLANs or only forward unicast frames to the originating VLAN.
The VLAN tags can be inserted or removed on a per-port basis.
In router applications, the router may want to know which input port this packet came from. The
RTL8309SB supports Port VID (PVID) for each port to insert a PVID in the VLAN tag on egress. In this
function, the VID information carried in the VLAN tag will be changed to PVID. The RTL8309SB also
provides an option to admit VLAN tagged packet with a specific PVID only. If this function is enabled, it
will drop non-tagged packets and packets with an incorrect PVID.
Each physical layer channel consists of a 4B5B encoder/decoder, Manchester encoder/decoder, transmit
output driver, scrambler/descrambler, output wave shaping, filters, digital adaptive equalizer, PLL circuit,
and DC restoration circuit for clock/data recovery. This integrated chip benefits from low power
consumption and offers
advanced functions with flexible configuration for a small workgroup switch,
multimedia, or real-time traffic mixed with other data type traffic, and other applications.
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| RU4D | SDR Cable Assembly; Connector Type A:micro D Ribbon Plug; Connector Type B:micro D Ribbon Plug; Cable Length:2m; No. of Contacts:26; Pitch Spacing:0.8mm RoHS Compliant: Yes |
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相關(guān)代理商/技術(shù)參數(shù) |
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