Tool/software:
the aurora part in the user manual don't have enough information about the transmit mode , the max size of DMA and each FIFO size , and how the aggregator work , the max size of aurora transmit , and the architecture of the 4 lane LVDS , do TI have more detail information about these parts?
Hello Kumar, according to the TPM 2944 have 4 LVDS data lanes, but the data sheet show only one pair of data lane and two pair of clock lane, how to understand the 4 data lanes output? and which FIFO is output to which LVDS lane?
and TPM said 2944 support 4 LVDS output or 2 aurora output , which pins are used for Aurora output , the LVDS_TXM0/P0 and LVDS_EXM2_CLKM/LVDS_TXP2_CLKP?
and what is the SRCX? does it stand for the FIFO buffer?, do we have a mapping about each SRC stand for which FIFO?
If a FIFO threshold is reached, and the data is transmit to aggregator, when does the aggregator trigger a transmit ?
Regards
Hello Xing,
1) It has 4 Aurora lanes, not the LVDS lanes. For the LVDS lanes you require clock signals as well due to which you it is mentioned as clock.
Aurora runs on the 4 lanes itself and it has 4 differential lanes for the same:
There is no FIFO to lane mapping, as mentioned in the TRM, the FIFO value is inputted into the aggregator which works in the following way:
You can find the SRC mapping here:
The above is the latest one which will be fixed in next TRM update.
Regards,
Saswat Kumar
Hello Kumar,
Thanks for the explanation , i am still confused about the "Aurora runs on the 4 lanes itself and it has 4 differential lanes for the same"
does 4 aurora lanes means these four pairs of physical pin can be individually configured as Aurora signal outputs？
and if i want to config the transmit size, if the write_mode is 0 , the fifo reach the threshold which set by SRC0_THRESHOLD Register then transmit data to aggregator ,right.? 
Then if the data size reach the AURORA_TX_UDP_SIZE register value , then pack the data to UDP packet format , and trigger a output to the physical port , am i right ? 
and the UDP header data, what is this header? is this a standard format?
