Poll
IPX-UDP: UDP Protocol Manager
The IPX-UDP is responsible
for receiving UDP packets (including video/audio assets) on a gigabit
Ethernet link.
The MAC controller is
based on the Tri-Mode MAC controller hard-coded within the Virtex-5
SXT or LXT technology.
intoPIX configures the
MAC controller with a specific MAC address read from a dedicated register
an also sets up the external PHY chip.
The selected protocol
(SGMII, GMII or RGMII), the exact chip reference and the corresponding
user manual must be provided by the customer.
To speed up the development,
intoPIX recommends SGMII protocol.
The protocol handler
will manage the user UDP protocol. ÂÂÂ
This handler is responsible for: ÂÂÂ
- ÂÂÂ
- ÂÂÂ
- receiving video/audio packets.
- verifying the integrity with
IP and UDP checksum and Ethernet CRC - sending a response packet
back every n packets received.
- ÂÂÂ
If a packet is missing or corrupted,
the UDP handler will reject all subsequent packets while waiting for
a correct retransmission of its related n packet group.ÂÂÂ
Resource:ÂÂÂ
Rocket IOs:  2
Slices:  2000 slices
RAMBs: 16 RAMBs (for 1500 bytes Ethernet
Frames)
DSPs: Non
Frequency:  125 MHz
      PHY
component:  Marvell 88E1111 (with SGMII protocol) or any other compatible
chip
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