Microcontrollers User manual

UM10237_2 © NXP B.V. 2008. All rights reserved.
User manual Rev. 02 — 19 December 2008 716 of 792
NXP Semiconductors
UM10237
Chapter 32: LPC24XX General Purpose DMA (GPDMA) controller
4.2.9 Error conditions
An error during a DMA transfer is flagged directly by the peripheral by asserting an Error
response on the AHB bus during the transfer. The GPDMA automatically disables the
DMA stream after the current transfer has completed, and can optionally generate an
error interrupt to the CPU. This error interrupt can be masked.
Big Big 8 16 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[15:0]
2/[31:16]
12341234
56785678
Big Big 8 32 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[31:0] 12345678
Big Big 16 8 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12121212
34343434
56565656
78787878
Big Big 16 16 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[15:0]
2/[31:16]
12341234
56785678
Big Big 16 32 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[31:0] 12345678
Big Big 32 8 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12121212
34343434
56565656
78787878
Big Big 32 16 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[15:0]
2/[31:16]
12341234
56785678
Big Big 32 32 1/[31:24]
2/[23:16]
3/[15:8]
4/[7:0]
12
34
56
78
1/[31:0] 12345678
Table 651. Endian behavior
Source
Endian
Destination
Endian
Source
Width
Destination
Width
Source
Transfer no/
byte Lane
Source
Data
Destination
Transfer no/
byte Lane
Destination
Data