TWR-K60N512-KEIL Freescale Semiconductor, TWR-K60N512-KEIL Datasheet - Page 78

• Manufacturer Part Number: TWR-K60N512-KEIL
• Description: K60N512 Keil Tower Kit
• Manufacturer: Freescale Semiconductor
• Series: Kinetisr
• Type: MCUr

Specifications of TWR-K60N512-KEIL

• Rohs Compliant: YES
• Contents: 4 Boards, Documentation, DVD
• Peak Reflow Compatible (260 C): Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Freescale Tower System, K60N512

Example—PIT-gated DMA requests
EDMAC_TCD0_W7 = (0
| EDMAC_BITER(0x1) /* Beginning Iteration Count = 1 = CITER */
| EDMAC_BWC(0x0) /* Bandwidth control = 0 -> No eDMA stalls */
| EDMAC_MAJOR_LINKCH(0x0)); /* Ignored, no channel linking */
/* Configure DMA Channel 1 TCD */
EDMAC_TCD1_W0 = EDMAC_SADDR((uint32)&command);/* Source Addr = address of command var */
EDMAC_TCD1_W1 = (0
| EDMAC_SMOD(0x0) /* Source Modulo, feature disabled */
| EDMAC_SSIZE(0x2) /* Source Size = 0x2 -> 32-bit transfers */
| EDMAC_DMOD(0x0) /* Destination Modulo, feature disabled */
| EDMAC_DSIZE(0x2) /* Destination Size = 0x2 -> 32-bit transfers */
| EDMAC_SOFF(0x0)); /* Source addr offset = 0x0, do not increment */
EDMAC_TCD1_W2 = EDMAC_NBYTES(0x4); /* Transfer 4 bytes per channel activation */
EDMAC_TCD1_W3 = EDMAC_SLAST(0x0); /* Do not adjust SADDR upon channel completion */
EDMAC_TCD1_W4 = EDMAC_DADDR(0x4003B000);/* Dest Addr = ATD Command Word Register */
EDMAC_TCD1_W5 = (0
/*| EDMAC_CITER_E_LINK /* Do not set ELINK bit, no channel linking */
| EDMAC_CITER(0x1) /* Current Iter Count -> 1 "NBYTES" transfer */
| EDMAC_DOFF(0x0)); /* Destination addr offset = 0x0, no increment */
EDMAC_TCD1_W6 = EDMAC_DLAST(0x0); /* Do not adjust DADDR upon channel completion */
EDMAC_TCD1_W7 = (0
/*| EDMAC_BITER_E_LINK /* Do not set ELINK bit, no channel linking */
| EDMAC_BITER(0x1) /* Beginning Iteration Count = 1 = CITER */
| EDMAC_BWC(0x0) /* Bandwidth control = 0 -> No eDMA stalls */
| EDMAC_MAJOR_LINKCH(0x0)); /* Ignored, no channel linking */
Using these configurations produces the required eDMA functionality for this example.
Refer to the full source code for this example in the ZIP file.
Kinetis Quick Reference User Guide, Rev. 0, 11/2010
78
Freescale Semiconductor