SPRUIV7B May 2022 – September 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
Direct access refers to the operation where data interface accesses directly trigger a read or write to FLASH memory. It is memory mapped and can be used to both access and directly execute code from external FLASH memory. Any incoming access that is not recognized as being within the programmable indirect trigger region is assumed to be a direct access and will be serviced by the DAC. Note that accesses that use DAC do not use the embedded SRAM. The data transfer stops when read or write burst is carried out. The amount of wait states applied will be dependent on the latency through the controller. Latency is kept to a minimum when the use of XIP read instructions are enabled (see OSPI_CONFIG_REG[18] ENTER_XIP_MODE_IMM_FLD and OSPI_CONFIG_REG[17] ENTER_XIP_MODE_FLD bits).