AN666 SILABS [Silicon Laboratories], AN666 Datasheet - Page 5

• Manufacturer Part Number: AN666
• Description: USAGE GUIDE FOR SIM3U1XX, SIM3C1XX, AND SIM3L1XX DMA AND DTM MODULES
• Manufacturer: SILABS [Silicon Laboratories]

4.1.1. Channel Transfer Descriptors
Table 1, Table 2, and Table 3 describe the source end pointer, destination pointer, and configuration descriptors for
the primary, alternate, and scatter-gather DMA channel descriptors.
Address in Channel Transfer Descriptor: 0x0000
Address in Channel Transfer Descriptor: 0x0004
Name
Name
Name
Name
Bit
Bit
Bit
Bit
31:0
31:0
Bit
Bit
31
15
31
15
SRCEND
DSTEND
Name
Name
30
14
30
14
29
13
29
13
Table 2. DMA0_CHx_DSTEND: Destination End Pointer
Source End Pointer.
This field is the address of the last source data in the DMA transfer.
Destination End Pointer.
This field is the last destination address of the DMA transfer.
Table 1. DMA0_CHx_SRCEND: Source End Pointer
28
12
28
12
27
11
27
11
26
10
26
10
25
25
9
9
SRCEND[31:16]
DSTEND[31:16]
SRCEND[15:0]
DSTEND[15:0]
Rev. 0.1
24
24
8
8
23
23
7
7
Function
Function
22
22
6
6
21
21
5
5
20
20
4
4
19
19
3
3
18
18
2
2
AN666
17
17
1
1
16
16
0
0
5