PDK API Guide for J721E
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Structure passed through DriverTypes_Packet addr field.
In order to pass data for the DIT Channel Status and User Data RAM registers, the addr field of the IOM_Packet is cast to Mcasp_PktAddrPayload. The addr field holds pointers to Mcasp_ChStatusRam and Mcasp_UserDataRam in addition to the DMA address to be programmed.
NOTE: The Mcasp_ChStatusRam and Mcasp_UserDataRam fields will be read only for a transmit channel operating in DIT mode.
Data Fields | |
Mcasp_ChStatusRam * | chStat |
Mcasp_UserDataRam * | userData |
uint16_t | writeDitParams |
uint32_t * | addr |
Mcasp_ChStatusRam* Mcasp_PktAddrPayload::chStat |
Channel Status RAM innfo
Mcasp_UserDataRam* Mcasp_PktAddrPayload::userData |
User Data RAM info
uint16_t Mcasp_PktAddrPayload::writeDitParams |
Determines whether Channel Status and User Data get * written in case of interrupt mode
uint32_t* Mcasp_PktAddrPayload::addr |
Actual address to program DMA with * Address of data word if transactions are interrupt driven