
NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 659 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
DMA will be enabled to fetch the descriptor which describes the real memory address and length. The
descriptor will be an 8-byte format, like the following:
Format
[31]
[30]
[29:0]
Word0
MEM_ADDR[31:0]
Word1
EOT
RD
Reserved
Count[19:0]
MEM_ADDR
: It specifies the memory address (AHB address).
EOT
: end of transfer. When this bit is set to high, it means this is the last descriptor.
RD
: “1” means read from memory into buffer. “0” means read from buffer into memory.