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RE: BUSCLK



Colud be possible but probably not a good idea. May interfer with SDRAM
operation. I amo not sure but I don't think the SDRAM clock is
synhronous
with other bus signals. Why can't you just mount an external oscialltor?

How big is the LCD screen? What are the requirements on the
communication
protocol?

-----Original Message-----
From: owner-dev-etrax@xxxxxxx.com">mailto:owner-dev-etrax@xxxxxxx.com] On
Behalf Of Martin Fake
Sent: Monday, August 23, 2004 10:12 AM
To: dev-etrax
Subject: Re: BUSCLK


    Hello again,
        Can I use SDRAMCLK for this purpose ? I suppose it is a 100 MHz
clock signal for SDRAM devices but I think it is possible to use it for
LCD
controller :)  What do you think about it ?.

----- Original Message ----- 
From: "Mikael Starvik" <mikael.starvik@xxxxxxx.com>
To: "'Martin Fake'" <martinfake_76@xxxxxxx.com>; "dev-etrax"
<dev-etrax@xxxxxxx.com>
Sent: Monday, August 23, 2004 9:58 AM
Subject: RE: BUSCLK


BUSCLK is not intended to clock peripherals. If you need a clock for
e.g. a FPGA you should clock it separately and use handshaking or
similar between the CPU and the FPGA. For simple peripherals
it is enough to get a chip select and a read/write strobe.

Regards
/Mikael

-----Original Message-----
From: owner-dev-etrax@xxxxxxx.com">mailto:owner-dev-etrax@xxxxxxx.com] On
Behalf
Of Martin Fake
Sent: Sunday, August 22, 2004 2:10 PM
To: dev-etrax
Subject: BUSCLK


     Hello,
         I need a clock signal for peripherals. I have seen a BUSCLK
(C15)
pin in BUS signals group. But I have not found enough information about
this
pin. Is it a clock output for peripherals or for only test signal ?

Martin