Coming Out of Pause

Versal ACAP Technical Reference Manual (AM011)

Document ID
AM011
Release Date
2022-04-26
Revision
1.4 English

There are two ways to bring a channel out of pause and into active mode:

  • Keep the current state and read the next descriptor continuously from the last descriptor before going into pause.
    • CONT bit is set in the control register and [CONT_ADDR] = 0.
  • Use the DSCR start address to fetch the first descriptor coming out of pause.
    • CONT bit is set in the control register and [CONT_ADDR] = 1.

Software can also put the DMA channel in disable mode from pause mode: Mode = Pause, enable = 0, and [CONT] = 1.