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參數(shù)資料
| 型號： | AX88772 |
| 廠商： | ASIX Electronics Corporation |
| 英文描述： | USB to 10/100 Fast Ethernet/HomePNA Controller |
| 中文描述： | USB至10/100快速以太網(wǎng)/電話線網(wǎng)絡控制器 |
| 文件頁數(shù)： | 11/42頁 |
| 文件大?。?/td> | 393K |
| 代理商： | AX88772 |
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AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
communicating with multiple PHY devices at the same time by identifying the managed PHY with 5-bit, unique Phy ID.
The Phy ID of the embedded 10/100 Ethernet PHY is being pre-assigned to “1_0000”.
Figure 4 shows the internal control mux for the station management interface. When doing read, the “mdin” signal will be
driven from 10/100 Ethernet PHY only if Phy ID matches with “1_0000”, otherwise, it will always be driven from
external MDIO pin of the ASIC.
10/100 Ethernet
PHY
Phy ID = 1_0000
mdout
mdin
STA
MDC
MDIO
Figure 4: Internal Control Mux for Station Management Interface
3.5 Memory Arbiter
The memory arbiter block is responsible for storing received MAC frames into on-chip SRAM (packet buffer) and then
forwarding to USB bus upon request from USB host via bulk in transfer. It also monitors packet buffer usage in
full-duplex mode for triggering PAUSE frame transmission out on TX direction. The memory arbiter block is also
responsible for storing MAC frames received from USB host via bulk out transfer and waiting to be transmitted out
towards Ethernet network.
3.6 USB to Ethernet Bridge
The USB to Ethernet bridge block is responsible for converting Ethernet MAC frame into USB packets or vice-versa.
This block supports proprietary burst transfer mechanism (submitted for US patent application) to offload software
burden and to offer very high packet transfer throughput over USB bus.
3.7 Serial EEPROM Loader
The serial EEPROM loader is responsible for reading configuration data automatically from external serial EEPROM
after power-on reset.
3.8 General Purpose I/O
There are 3 general purpose I/O pins provided by this ASIC.
ASIX ELECTRONICS CORPORATION
11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AX88772_07 | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB to 10/100 Fast Ethernet/HomePNA Controller |
| AX88772A | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88772ALF | 制造商:ASIX Electronics Corporation 功能描述: |
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| AX88772BLF | 制造商:ASIX Electronics Corporation 功能描述: |
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