User`s manual

RX62N Group, RX621 Group 4. Library Reference
2) R_DMAC_Destroy
Synopsis
Disable the DMA controller.
Prototype
bool R_DMAC_Destroy(
uint8_t data
// Channel number
);
Description
Shutdown the DMAC module.
[data]
The channel number n (where n = 0 to 3).
Return value
True if the shutdown succeeded; otherwise false.
Category
DMA controller
Reference
R_DMAC_Create.
Remarks
•
If all channels have been suspended, the DMAC module will be shut down.
•
Disabling the DMAC module will also shut down the DTC.
•
If another peripheral is being used to trigger a DMA transfer, stop the triggers from that
peripheral (using Control or Destroy for that peripheral) before calling this function.
Program example
/* RPDL definitions */
#include "r_pdl_dmac.h"
/* RPDL device-specific definitions */
#include "r_pdl_definitions.h"
void func(void)
{
/* Shutdown channel 2 */
R_DMAC_Destroy(
2
);
}
R20UT0084EE0112 Rev.1.12 Page 4-68
July. 16, 2014