JAJSTJ4A June 2022 – March 2024 TMS570LC4357-SEP
PRODUCTION DATA
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There are two ports, port A and port B attached to the DMA controller. When configuring a DMA channel for a transfer, the application must also specify the port associated with the transfer source and destination. Table 7-40 lists the mapping between each port and the resources. For example, if a transfer is to be made from the flash to the SRAM, the application will need configure the desired DMA channel in the PARx register to select port A as the target for both the source and destination. If a transfer is to be made from the SRAM to a peripheral or a peripheral memory, the application will need to configure the desired DMA channel in the PARx register to select port A for read and port B for write. Likewise, if a transfer is from a peripheral to the SRAM then the PARx will be configured to select port B for read and port A for write.
TARGET NAME | ACCESS PORT OF DMA |
---|---|
Flash | Port A |
SRAM | Port A |
EMIF | Port A |
Flash OTP/ECC/EEPROM | Port A |
All other targets (peripherals, peripheral memories) | Port B |