This IP replaces the ad_mem_asym module as storage element for the data
offload.
Having standard AXIS interface for data will allow
implementation of storages on UltraRAM.
This IP serves as storage interfacing element for external memories like
HBM or DDR4 which have AXI3 or AXI4 data interfaces.
The core leverages the axi_dmac as building blocks by merging an array of
simplex DMA channels into duplex AXI channels. The core will split the
incoming data from the source AXIS interface to multiple AXI channels,
and in the read phase will merge the multiple AXI channels into a single
AXIS destination interface.
The number of duplex channels is set by syntheses parameter and must be
set with the ratio of AXIS and AXI3/4 interface.
Underflow or Overflow conditions are reported back to the data offload
through the control/status interface.
In case multiple AXI channels are used the source and destination AXIS
interfaces widths must match.
This allows the external synchronization input to be driven from
asynchronous sources like a 1 PPS signal or just signals from different
clock domains in general.
Signed-off-by: David Winter <david.winter@analog.com>
Remove contraints related to quartus version so that
cn0506_mii and cn0506_rgmii on arria10 to be built
with default quartus version.
Signed-off-by: stefan.raus <stefan.raus@analog.com>
There are no external termination resistors on the VCU118 and VCU128 for
the SGMII clock lines.
The board files of the VCU118 enables them, but this was not reflected in the
constraint files.
For VCU128 the clocking is similar, even if diff terms are not set in the
board files we should have a consistent approach with the VCU118.
There are no external termination resistors on the VCU118 for the SGMII
clock lines. The board files enables them, but this was not reflected in the
constraint files.
In some cases (GTX2) the transceiver may gate the out_clk when it is in
reset or misconfigured. This will stop the clock generators from getting
a clock prior removing the reset of the XCVR. The XCVR has a requirement
of running user clock while removing the reset. The correct sequence must be :
Enable device clocks (user clock)
Remove the reset from the XCVR
In some cases (GTX2) the transceiver may gate the out_clk when it is in
reset. This will stop the clock generators from getting a clock prior
removing the reset of the XCVR. The XCVR has a requirement of running
user clock while removing the reset. The correct sequence must be :
Enable device clocks (user clock)
Remove the reset from the XCVR
Laszlo Nagy
sergiu arpadi
PopPaul2021
David Winter
Iulia Moldovan
Adrian Costina
AndrDragomir
stefan.raus
Robin Getz
LIacob106
Nick Pillitteri
Filip Gherman
alin724
AndreiGrozav
Stanca Pop
Ionut Podgoreanu