1. how reliable is the internal LDO for bf53x? +1.2v consumes a lot current . It needs a big heat sink???
2. to dump / fetch data between external mcu and blackfin, what interface can I use?
----long distance, off board communication: ethernet, rs232(slow), rs485(slow)
----on board fast communication: spi, sport (i2s)
can I use dual port memory in between bf53x and external mcu? no way?