lkml.org 
[lkml]   [2006]   [May]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: IP1000 gigabit nic driver
Lennert Buytenhek wrote:
> On Mon, May 01, 2006 at 10:38:47PM +0200, Francois Romieu wrote:
>
>
>>>-/* Minimum number of miliseconds used to toggle MDC clock during
>>>+/* Minimum number of nanoseconds used to toggle MDC clock during
>>> * MII/GMII register access.
>>> */
>>>-#define IPG_PC_PHYCTRLWAIT 0x01
>>>+#define IPG_PC_PHYCTRLWAIT_NS 200
>>
>>I would have expected a cycle of 400 ns (p.72/77 of the datasheet)
>>for a 2.5 MHz clock. Why is it cut by a two factor ?
>
>
> 200 ns high + 200 ns low = 400 ns clock period?

Yes.

David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-05-02 02:39    [W:0.075 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site