RTL8019AS clock question

Dec 21, 2006 3 Replies

Hello all,



The data sheet for the RTL8019AS is a bit vague about the clock requirments. After emailing realtek and waiting a week for a response they answered most of my questions (20MHz, 16pF load impedence,


I've run thousands and thousands of RTL8019AS's from the output of a Cypress CY2292F with no problems.

Yup. Original application for the part was a

1 chip + EEPROM EISA ethernet controller. You can probably still find one on ebay or at a surplus shop.

Jim,

Thank you for the quick reply.

What was the purpose of the EEPROM EISA ethernet controller? I am a bit new to the old EISA bus (DAMN YOU VMEs!!!). If I plan on using the jumpers instead of BROMs I dont understand the purpose of the extra chip.

Thank you again, Matt

It contains the MAC address:

formatting link

And stuff like base I/O port address, interrupt and bus size. Also a bunch of plug and play registers I've never fiddled with.

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