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ssp on LPC2148

ssp on LPC2148

2006-05-03 by naderus2000

hi,
i need a SPI bus with 15MHZ clock can work for MMC.
i see that the SPI0 for lpc2148 is max to 7.5 MHZ(1/8 PLCK)
& i see that SSP(SPI1) can clock max PLCK/2 so about 30 mhz.
so i want to know can i use SPI1 for MMC. becuse i read it is the 
motorola sPI.
is it any different from normall SPI?


thanks.

Re: ssp on LPC2148

2006-05-03 by ghetto_shinobi

--- In lpc2000@yahoogroups.com, "naderus2000" <naderus2000@...> wrote:
>
> hi,
> i need a SPI bus with 15MHZ clock can work for MMC.
> i see that the SPI0 for lpc2148 is max to 7.5 MHZ(1/8 PLCK)
> & i see that SSP(SPI1) can clock max PLCK/2 so about 30 mhz.
> so i want to know can i use SPI1 for MMC. becuse i read it is the 
> motorola sPI.
> is it any different from normall SPI?
> 
> 
> thanks.
>
Yes u can use it.
I'd suggest u to read AN10406(Accesing MMC card using SPI on LPC2000)
 note from Philips.They use LPC2148 in their example and SPI1 runnig
with PCLK/2.

Regards!!

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