Revisions Affected

IWR2944 ES1.0 ONLY

Details

Measurement Data Output (MDO) is used to capture the transactions on the bus connected from different interfaces of the IWR2944 device and transmit outside over LVDS (4-data lanes). MDO is comprised of a sniffer, FIFO, and an aggregator. The MDO sniffer module is responsible for monitoring the hardware interfaces in the chip and capturing the transactions on the bus which are within the configured addressing region of interest.

Hence, the sniffer module, as the name suggests, can sniff a bus interface and transfer contents to the MDO FIFO and aggregator. It can access the data from Radar Sub-System EDMA, L3 memory, DMA, local RAM, hardware accelerator etc.

Currently, Hardware accelerator (HWA) sniffers for MDO interface are not operational.

Workaround

The required data to be sent out over the Aurora interface can be transferred out using the Generic DSS MDO FIFO (F2) using an EDMA to sequence the transfers.