參數(shù)資料
型號: AX88796L
廠商: Electronic Theatre Controls, Inc.
英文描述: 3-in-1 Local Bus Fast Ethernet Controller
中文描述: 3合1本地總線快速以太網(wǎng)控制器
文件頁數(shù): 65/71頁
文件大?。?/td> 931K
代理商: AX88796L
ASIX ELECTRONICS CORPORATION
65
AX88796 L 3-in-1 Local Bus Fast Ethernet Controller
Errata of AX88796
1. MII Station Management functions has some defference from previous target
specification.
Description: The target specification is using station management can access both
internal PHY registers and external PHY registers when the PHY address is matched
as describe in section 5.5. Anyway, this version can only access the current selected
PHY’s registers. How do you know which is the selected media or PHY Please refer
to section 4.1.16 GPO and Control (GPOC) register.
Solution: The defect will not affect single media application that is using embedded
PHY. When using MII interface connects to external media (for example HomePNA)
to come out with combo solution. Care must be taken, be sure which media is the
current selected when you access PHY registers.
2. AX88796 can’t support 68K CPU with byte mode
Solution: Please using word mode for high performance. MC68008 has only 8-bit bus, so
AX88796 can’t support this CPU.
3. When AX88796 transmit a packet and the packet is collided for 16 times. The packet
will be reported as as PTX bit asserted rather than TXE asserted.
Solution: Packet collided 16 times and aborted is normal way, even that is rare happen
in live network, in very heavy traffic. While the upper protocol layer will handle the
situation and cover the packet loss.
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