Altera UG-01080 Betriebsanweisung Seite 199

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 484
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 198
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
10. Low Latency PHY IP Core
The Altera Low Latency PHY IP Core receives and transmits differential serial data,
recovering the RX clock from the RX input stream. The PMA connects to a simplified
PCS, which contains a phase compensation FIFO. Depending on the configuration
you choose, the Low Latency PHY IP Core instantiates one of the following channels:
GX channels using the Standard PCS
GX channels using the 10G PCS
GT channels in PMA-Direct mode
An Avalon-MM interface provides access to control and status
information.Figure 10–1 illustrates the top-level modules of the Low Latency PHY IP
Core.
Because the Low Latency PHY IP Core bypasses much of the PCS, it minimizes the
PCS latency.
f For more detailed information about the Low Latency datapath and clocking, refer to
the refer to the Stratix V GX Device Configurations” section in the Transceiver
Configurations in Stratix V Devices chapter of the Stratix V Device Handbook.
Device Family Support
IP cores provide either final or preliminary support for target Altera device families.
These terms have the following definitions:
Final support—Verified with final timing models for this device.
Preliminary support—Verified with preliminary timing models for this device.
Figure 10–1. Low-Latency PHY IP Core—Stratix V Devices
Tx serial data
Rx serial data
Stratix V FPGA
PMA
CDR
Serialization
Deserialization
PCS
Phase Comp
Byte Serializer
Avalon-MM
Control & Status
Avalon-ST
to
MAC
to
Embedded
Controller
to
Transceiver
Reconfiguration
Controller
to
ASIC,
ASSP,
FPGA,
or
Backplane
Seitenansicht 198
1 2 ... 194 195 196 197 198 199 200 201 202 203 204 ... 483 484

Kommentare zu diesen Handbüchern

Keine Kommentare