DS643 Datasheet, PDF (139/216 Pages) Xilinx, Inc – Soft Direct Memory Access (SDMA) support

X-Ref Target - Figure 22
LogiCORE IP Multi-Port Memory Controller (v6.06.a)
Memory Space
p
Descriptor 1
p+c
8-word
cacheline
m0 m1 m2 m3
n n+1 r0 r1
r2 r3 r4 r5
Stuff data
into FIFOs
m+79
m+78
m0 m1 m2
m+7C m3
m+80
Buffer 1
m+104
n n+1
Stuff data
into FIFOs
r+100
r+7C
r+80
Stuff data
into FIFOs
r+7E
r0 r1
r3 r4 r5
s s+2
Footer (ignored)
Buffer 2
s
r+104 s+1 s+2
Stuff data
into FIFOs
Figure 22: Transmit Byte Shift Example
DS607_16_073007
DS643 February 22, 2013
www.xilinx.com
139
Product Specification