SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
Section 3.6 and Section 3.8.1 provide information on how to set up the attributes on the generic transaction. But the BCDMA and pktDMA transactions do not rely on the ISC block and QoS block to set the transaction attributes. Instead, those attributes are determined by the various DMA configuration registers:
How to configure BCDMA/PktDMA Transactions | Link | |
---|---|---|
ASEL | descriptors: host packet descriptor and host buffer descriptor for pktDMA and Transfer Request (TR) descriptors for BCDMA | See DMASS Transfer Request Descriptor |
priority | channel priority control register | DMASS Tx Channel Priority Control Register DMASS Rx Channel Priority Control Register |
orderID | channel priority control register | |
secure | flow credential registers | DMASS Credentials Register |
priv | flow credential registers | |
privID | flow credential registers | |
atype | channel configuration MMR. Fixed to 2b'00 |