Enhanced Direct Memory Access (eDMA)
MPC5565 Microcontroller Reference Manual, Rev. 1.0
Freescale Semiconductor
9-23
defines the fields of the TCD
n
structure.
NOTE
The TCD structures for the eDMA channels shown in
implemented in internal SRAM. These structures are not initialized at reset.
Therefore, all channel TCD parameters must be initialized by the
application code before activating that channel.
Word
Offset
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0x0
SADDR
0x4
SMOD
SSIZE
DMOD
DSIZE
SOFF
0x8
NBYTES
0xC
SLAST
0x10
DADDR
0x14
CITER.E_ LIN
K
CITER
1
or
CITER.LINKCH
1
If channel linking on minor link completion is disabled, TCD bits [161:175] are used to form a 15-bit CITER field;
if channel-to-channel linking is enabled, CITER becomes a 9-bit field.
DOFF
0x18
DLAST_SGA
0x1C
BITER.E_ LINK
BITER
2
or
BITER.LINKCH
2
If channel linking on minor link completion is disabled, TCD bits [225:239] are used to form a 15-bit BITER field;
if channel-to-channel linking is enabled, BITER becomes a 9-bit field.
BITER
BWC
MAJOR LINKCH
DONE
AC
T
IV
E
MAJOR.E_
LINK
E_SG
D_REQ
INT
_
HALF
INT
_
MAJ
ST
AR
T
Figure 9-18. TCD Structure
Summary of Contents for MPC5565
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Page 1153: ...Calibration MPC5565 Microcontroller Reference Manual Rev 1 0 B 8 Freescale Semiconductor...