ST SPC560P34 - Page 400

Enhanced Direct Memory Access (eDMA) RM0046
400/936 Doc ID 16912 Rev 5
Figure 193 defines the fields of the TCDn structure.
0x1000 + (32 × n) + 160 1
Channel-to-channel Linking on Minor
Loop Complete
CITER.E_LINK
Word 5
0x1000 + (32 × n) + 161 6
Current Major Iteration Count or
Link Channel Number
CITER or
CITER.LINKCH
0x1000 + (32 × n) + 167 9 Current Major Iteration Count CITER
0x1000 + (32 × n) + 176 16 Destination Address Offset (Signed) DOFF
0x1000 + (32 × n) + 192 32
Last Destination Address Adjustment /
Scatter Gather Address
DLAST_SGA Word 6
0x1000 + (32 × n) + 224 1
Channel-to-channel Linking on Minor
Loop Complete
BITER.E_LINK
Word 7
0x1000 + (32 × n) + 225 6
Starting Major Iteration Count or
Link Channel Number
BITER or
BITER.LINKCH
0x1000 + (32 × n) + 231 9 Starting Major Iteration Count BITER
0x1000 + (32 × n) +240 2 Bandwidth Control BWC
0x1000 + (32 × n) + 242 6 Link Channel Number MAJOR.LINKCH
0x1000 + (32 × n) + 248 1 Channel Done DONE
0x1000 + (32 × n) + 249 1 Channel Active ACTIVE
0x1000 + (32 × n) + 250 1
Channel-to-channel Linking on Major
Loop Complete
MAJOR.E_LINK
0x1000 + (32 × n) + 251 1 Enable Scatter/Gather Processing E_SG
0x1000 + (32 × n) + 252 1 Disable Request D_REQ
0x1000 + (32 × n) + 253 1
Channel Interrupt Enable When
Current Major
Iteration Count is Half Complete
INT_HALF
0x1000 + (32 × n) + 254 1
Channel Interrupt Enable When
Current Major
Iteration Count Complete
INT_MAJ
0x1000 + (32 × n) + 255 1 Channel Start START
Table 192. TCDn 32-bit memory structure (continued)
eDMA Bit Offset
Bit
Length
TCDn Field Name
TCDn
Abbreviation
Word #