Datasheet > RTL8305SB-VD-LF

RTL8305SB-VD-LF

更新时间： 2024-02-24 00:39:55

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RTL8305SB-VD-LF 数据手册

RTL8305SB-VD

Datasheet

tag for all tagged frames. The RTL8305SB-VD also supports a special insert VLAN tag function to

separate traffic from WAN and LAN sides in Router and Gateway applications.

Maximum packet length can be 1536 or 1552 bytes according to the initial configuration (strapping upon

reset). The filtering function is supported for the 802.1D specified reserved group MAC addresses (01-80-

C2-00-00-03 to 01-80-C2-00-00-0F).

The RTL8305SB-VD provides flexible LED functions for diagnostics, which include: 1) Four

combinations of link, activity, speed, duplex and collision which are designed for convenient LED

displays, such as:

• Bi-color LEDs

• Reset blinking

• Blinking time selection

The RTL8305SB-VD also provides a loop detection function and alarm, for network existence

notification, with an output pin which can be designed as a visual LED or a status input pin for a CPU.

The RTL8305SB-VD implements a power saving mode on a per-port basis. Each port automatically

enters power saving mode 10 seconds after the cable is disconnected from it. The RTL8305SB-VD also

implements a power down mode on a per-port basis. Users can set MII Reg.0.11 to force the

corresponding port to enter power down mode, which disables all transmit/receive functions, except SMI

(MDC/MDIO management interface).

Each physical layer channel of the RTL8305SB-VD consists of a 4B5B encoder/decoder, a Manchester

encoder/decoder, a scrambler/descrambler, a transmit output driver, output wave shaping filters, a digital

adaptive equalizer, a PLL circuit, and a DC restoration circuit for clock/data recovery. Friendly crossover

auto detection and correction functions are also supported for easy cable connection.

The integrated chip benefits from low power consumption, advanced functions with flexible configuration

for 5-port SOHO switch, Home Gateway, xDSL/Cable router, and other IA applications.

5-port 10/100Mbps Single-Chip Dual MII Switch Controller

Track ID: JATR-1076-21 Rev. 1.5

1...6 7 8910 11 12...95

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