TMS320F28379D: EMIF

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Ganeshapandi K said:

Hi, I need clarification on the pins of EM1A0, EM1A1, EM1A2. I would like to interface these pin with an asynchronous device (ADC with the help of 3-line to 8-line decoder)

This appnote can help with explaining the EMIF basics.

Ganeshapandi K said:

1. If these are address pins, how can I configure these pins ?

The pin values are calculated by the EMIF based on the logical address accessed by the CPU.

Ganeshapandi K said:

2. In which configuration can the pin EM1A0 made logically high or low?

If controlled by the EMIF, the pin can be driven low by accessing certain addresses.  If controlled by GPIO, the pin can be forced through register writes.

Ganeshapandi K said:

3. If I am using 0x0010 0000 as EMIF's Chip select memory as per TRM, When I write data in this location, My EM1Dx pins output that data bits in their respective pins. Similar to that, can I set EM1Ax pins work writing      data in the address locations?

The address signals are functional for all EMIF operations as long as they are configured correctly.

Ganeshapandi K said:

4. Is EM1Ax pins programmable or just physical connections for address between EMIF and Asynchronous device?

Please elaborate on what "programmable" means to you for this question.