I am trying to connect the pin CS or CE pin from my MMC adapter to my micro controller, but i cant find the card enable pin!

I have loked through the data sheet and cant seem to find a pin which can be used as a card enable pin.

I have attached my MMC adapter data sheet and my MCU data sheet can be found here:

http://ww1.microchip.com/downloads/en/DeviceDoc/39564c.pdf,

hope someone can help me out.

Thanks.

 

The CS pin on the card can be connected to any digital output of the microcontroller (the important think is that you have to program the uC to make the appropriate function on this pin). This pin enables or disables the card so it just needs a high or low logic applied to it. Be careful to include a voltage divider on the output of the uC to control the CS pin of the card because the card operates at 3.3V unless your uC operates at 3.3 V too.

 

The enable pin is assigned by you from one of the digital IO pins in the MCU.

hgmjr

 

Thanks!, oh and I have another problem...(sorry im a noob lol) on my Decoder it says that I have to connect the "OCLK" to my DAC, (OCLK = Oversampling Clock) but I cant find any appropriate input on my DAC for that pin...

any help would really be appriciated...

Thanks..

my DAC can be found at:

http://www.cirrus.com/en/pubs/proDatasheet/CS4340_F3.pdf

My Decdoder can be found at:

http://st.com/stonline/products/literature/ds/6399.pdf

 

I don't see the attachments associated with your DAC and your decoder.

I just see the attachments for the MMC and the PIC.

hgmjr

 

well they are not attached, I have put up links on my previous comment... but here are the links for the DAC and the Decdoder again:

DAC: http://www.cirrus.com/en/pubs/proDatasheet/CS4340_F3.pdf

Decoder: http://st.com/stonline/products/literature/ds/6399.pdf