ADLINK PCIe-7360 - Manual (Page 56)

46 Operations
The operating architecture of DO DMA in handshake mode is as
shown.
Figure 3-16: DO Handshake Mode Architecture
80-step
phase shift
Ext. DI sampled clk
Ext. DI CLK
Mu
x
Bus Master DMA
8kS FIFO Flip Flop
D[31:0]
I
AFI7
SMB CLK in
AFI[7:0]
DI sampled clk
Start Trigger
Mux
NoWait/
WaitTRIG
Software trigger DI-Start or DI-TRIG
DI Data DI Data
External trigger in
External clock in
clk
enable
Software trigger out
DI-REQ
DI-ACK
DI-REQ
DI-ACK
DI-REQ
DI-ACK
DI C
L
K
Mux