參數(shù)資料
型號: ADM6996F
廠商: INFINEON TECHNOLOGIES AG
英文描述: 6 port 10/100 Mb/s Single Chip Ethernet Switch Controller
中文描述: 6端口10/100 Mb / s的單芯片以太網(wǎng)交換機(jī)控制器
文件頁數(shù): 19/69頁
文件大小: 2099K
代理商: ADM6996F
ADM6996F
Function Description
Chapter 3 Function Description
3.1 Functional Descriptions
The ADM6996F integrates four 100Base-X physical sub-layer (PHY), 100Base-TX
physical medium dependent (PMD) transceivers, four complete 10Base-T modules, 6
port 10/100 switch controller and two 10/100 MII/GPSI MAC and memory into a single
chip for both 10Mbits/s, 100Mbits/s Ethernet switch operation. It also supports 100Base-
FX operation through external fiber-optic transceivers. The device is capable of operating
in either Full Duplex mode or Half-Duplex mode in 10Mbits/s and 100Mbits/s.
Operational modes can be selected by hardware configuration pins, software settings of
management registers, or determined by the on-chip auto negotiation logic.
The ADM6996F consists of three major blocks:
10/100M PHY Block
Switch Controller Block
Built-in SSRAM
The interfaces used for communication between PHY block and switch core is MII
interface.
Auto MDIX function is supported in this block. This function can be Enable/Disable by
hardware pin.
3.2 10/100M PHY Block
The 100Base-X section of the device implements the following functional blocks:
100Base-X physical coding sub-layer (PCS)
100Base-X physical medium attachment (PMA)
Twisted-pair transceiver (PMD)
The 100Base-X and 10Base-T sections share the following functional blocks.
Clock synthesizer module
MII Registers
IEEE 802.3u auto negotiation
3.3 100Base-X Module
The ADM6996F implements 100Base-X compliant PCS and PMA and 100Base-TX
compliant TP-PMD as illustrated in Figure 2. Bypass options for each of the major
functional blocks within the 100Base-X PCS provides flexibility for various applications.
100Mbits/s PHY loop back is included for diagnostic purpose.
Infineon-ADMtek Co Ltd.
3-1
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ADM6996FCXADR1XT 制造商:Infineon Technologies AG 功能描述:SWITCH / PHY