Coming Out of Pause

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

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

1.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.

2.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.