RTL8019AS clock question

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,

Reply to
Matt
Loading thread data ...

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.

Reply to
Jim Stewart

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

Reply to
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.

Reply to
Jim Stewart

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.