The SDMMC_IDMABASE1R register contains the double buffer configuration second buffer memory base address.
IDMABASE1 | Buffer 1 memory base address, shall be word aligned (bit [1:0] are always 0 and read only). This register can be written by firmware when DPSM is inactive (DPSMACT = 0), and can dynamically be written by firmware when DPSM active (DPSMACT = 1) and memory buffer 1 is inactive (IDMABACT = 0). |