[En-Nut-Discussion] Understanding the Ethernut 1.3G design (RTL8019AS)

[Matthias]

Hello,

can nobody help me at my questions ?


Best regards

Matthias


>Betreff : [En-Nut-Discussion] Understanding the Ethernut 1.3G design (RTL8019AS)
>Gesendet: 17.12.2004 05:20:21
>An : "En-Nut <en-nut-discussion at egnite.de>"
>Von: "Matthias <en_nut_discussion at onlinehome.de>"

>----- Original Message -----
>Hello,

>I try to understand the ethernet part of the Ethernut 1.3G PCB.

>I have the following questions:

>1. Why is the complete address bus routed to the RTL8019AS, when he only uses 
>0x8300-0x831F (0x300-0x31F)?
>   Or can I access the 16k SRAM via the other address lines ?
>   Can I use the adresses 0x8320-0xFFFF (and 0x8000-0x82FF) for an own Add-On 
>board ?

>2. What are the pros and cons of the EEPROM emulation ?
>   I readed something about half-/full-duplex. Can anyone explain me this ?


>(Until now I have no Ethernet knowledge besides socket programming.)


>Thank you very much for your help !


>Best regards

>Matthias
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