[Coco] Fwd: IP packets on my coco
go4retro at go4retro.com
Thu Jun 9 22:47:56 EDT 2016
On 6/9/2016 9:35 PM, John W. Linville wrote:
>> Well, it looks like the datasheet might be wrong...
>> Application Note 181 from Cirrus Logic says:
I was looking for that all day. Glad you found it.
>> So apparently the 8-bit mode is a bit unreliable in the CS8900A?
No, it's rock solid on the CBM platform, so I expect it would be the
same on the Coco.
>> With that said, the usefulness of interrupts for servicing an Ethernet
>> NIC on <2MHz CPU is debatable...
Most folks appreciate the idea of getting an IRQ when a packet arrives.
In most newer switched Ethernet environments, you won't see any packets
until one comes for you. Thus, you can safely do other stuff and then
an IRQ will mean there is actual data for you.
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