Information

1
Transfer Control
Descriptor (TCD)
eDMA Engine
Data Path
eDMA
0
Program Model/
64
Control
n-1
To/From Crossbar Switch
2
Channel Arbitration
Address Path
Read Data
Write Data
Address
Read Data
Write Data
Write Address
Internal Peripheral Bus
eDMA Peripheral
Request
eDMA Done
Figure 21-1. eDMA block diagram
21.1.2 Block parts
The eDMA module is partitioned into two major modules: the eDMA engine and the
transfer-control descriptor local memory.
The eDMA engine is further partitioned into four submodules:
Introduction
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
334 Freescale Semiconductor, Inc.