Altera UG-01080 Betriebsanweisung Seite 459

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 484
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 458
Chapter 19: Migrating from Stratix IV to Stratix V Devices 19–5
Differences Between PHY IP Core for PCIe PHY (PIPE) Parameters in Stratix IV and Stratix V Devices
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
Differences Between PHY IP Core for PCIe PHY (PIPE) Parameters in
Stratix IV and Stratix V Devices
Table 194 lists the PHY IP Core for PCI Express PHY (PIPE) parameters and the
corresponding ALTGX megafunction parameters.
rx_rmfifoempty
[2<n> – 1:0] Not available
rx_rmfifodatainserted
[2<n> – 1:0] Not available
rx_rmfifodatadeleted
[2<n> – 1:0] Not available
Transceiver Reconfiguration
cal_blk_clk
1
These signals are included in the
reconfig_to_xcvr
bus.
reconfig_clk
1—
reconfig_togxb
[3:0]
reconfig_to_xcvr
variable
reconfig_fromgxb
[16:0]
reconfig_from_xcvr
variable
Avalon MM Management Interface
Not available
phy_mgmt_clk_rst
1
phy_mgmt_clk
1
phy_mgmt_address
[8:0]
phy_mgmt_read
1
phy_mgmt_readdata
[31:0]
phy_mgmt_write
1
phy_mgmt_writedata
[31:0]
Note to Table 19–3:
(1) <n> = the number of lanes. <d> = the total deserialization factor from the pin to the FPGA fabric.
Table 19–3. Correspondences between XAUI PHY Stratix IV GX and Stratix V Device Signals (Part 2 of 2)
(1)
Stratix IV GX Devices Stratix V Devices
Signal Name Width Signal Name Width
Table 19–4. Comparison of ALTGX Megafunction and PHY IP Core for PCI Express PHY (PIPE) Parameters (Part 1 of 2)
ALTGX Parameter Name (Default Value) PCI Express PHY (PIPE) Parameter Name Comments
Number of channels Number of Lanes
Channel width Deserialization factor
Subprotocol Protocol Version
input clock frequency PLL reference clock frequency
Starting Channel Number
Automatically set to 0.
Quartus II software handles
lane assignments.
Enable low latency sync
pipe_low_latency_syncronous_mode
Enable RLV with run length of
pipe_run_length_violation_checking
Always on
Enable electrical idle inference
functionality
Enable electrical idle inferencing
phy_mgmt_clk_in_mhz
For embedded reset
controller to calculate delays
Seitenansicht 458
1 2 ... 454 455 456 457 458 459 460 461 462 463 464 ... 483 484

Kommentare zu diesen Handbüchern

Keine Kommentare