Ahb Master(Dma) Operation Flow Chart - Samsung S3C2416 User Manual

USB2.0 DEVICE

8.26 AHB MASTER(DMA) OPERATION FLOW CHART

8.26.1 A. OUT Transfer Operation Flow
16-32
AHB Master IF Registers (Unit Counter, Total Transfer Counter,
Control) are set in initial state or Interrupt service routine.
AHB Master IF Registers are to be set after MCU reads all data packets
from USB OUT FIFO to operate a AHB Master operation after interrupt
service mode.
USB Core receives OUT data from HOST PC and transfers to Memory.
Master Interface transfers data from OUT FIFO in USB core to Memory
Total Transfer Counter in USB core is Zero?
AHB Master Operation is ended and Interrupt mode is On.
Figure 17-3. OUT Transfer Operation Flow
S3C2416X RISC MICROPROCESSOR