Enhanced Direct Memory Access (eDMA)MPC5606S Microcontroller Reference Manual, Rev. 7Freescale Semiconductor 487(regardless of the number of implemented channels) provides a global set function, forcing the entirecontents of DMAEEI{H,L} to be asserted. If bit 0 (NOP) is set, the command is ignored. This allowsmultiple byte registers to be written as a 32-bit word. Reads of this register return all zeroes. SeeFigure 15-10 and Table 15-8 for the DMASEEI definition.15.3.1.8 DMA Clear Enable Error Interrupt (DMACEEI) registerThe DMACEEI register provides a simple memory-mapped mechanism to clear a given bit in theDMAEEI{H,L} registers to disable the error interrupt for a given channel. The data value on a registerwrite causes the corresponding bit in the DMAEEI{H,L} register to be cleared. A data value of 64 to 127(regardless of the number of implemented channels) provides a global clear function, forcing the entirecontents of the DMAEEI{H,L} to be zeroed, disabling all DMA request inputs. If bit 0 (NOP) is set, thecommand is ignored. This allows multiple byte registers to be written as a 32-bit word. Reads of thisregister return all zeroes. See Figure 15-11 and Table 15-9 for the DMACEEI definition.Address: Base + 0x001A Access: User write-only0 1 2 3 4 5 6 7R 0 0 0 0 0 0 0 0W NOP SEEI[0:6]Reset 0 0 0 0 0 0 0 0Figure 15-10. DMA Set Enable Error Interrupt (DMASEEI) registerTable 15-8. DMA Set Enable Error Interrupt (DMASEEI) field descriptionsName DescriptionNOP No Operation0 Normal operation.1 No operation, ignore bits 6–0SEEI[0:6] Set Enable Error Interrupt0–63 Set the corresponding bit in DMAEEI{H,L}64–127 Set all bits in DMAEEI{H,L}Address: Base + 0x001B Access: User write-only0 1 2 3 4 5 6 7R 0 0 0 0 0 0 0 0W NOP CEEI[0:6]Reset 0 0 0 0 0 0 0 0Figure 15-11. DMA Clear Enable Error Interrupt (DMACEEI) registerTable 15-9. DMA Clear Enable Error Interrupt (DMACEEI) field descriptionsName DescriptionNOP No Operation0 Normal operation.1 No operation, ignore bits 6–0CEEI[0:6] Clear Enable Error Interrupt0–63 Clear corresponding bit in DMAEEI{H,L}64–127 Clear all bits in DMAEEI{H,L}
