Does T.I. have any test data to show what the actual DSP power consumption is when in the 8kHz mono ADC only mode?
We are presently using one of the SPI ports on the ‘5509 DSP, in slave mode, to communicate with a microprocessor. In a separate design we are using the ‘5535 DSP which does not have a slave SPI port. It appears that the two ways we can communicate are using the I2C (we would need to be a slave device) or by using two I2S ports (one to send data, one to receive). We need to use DMA because we will not be polling this port and cannot use interrupts. We are hesitant to use the I2C for reliably transmitting large amounts of data back and forth to the uP. Does T.I. have any application information regarding the use of the I2S ports for uP to uP communication or can you suggest a better way to do this?
