Altera UG-01080 Betriebsanweisung Seite 475

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Additional InformationAdditional Information 20–9
Revision History
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
Interlaken
December
2011
1.4
Changed access mode for RX equalization, pre-CDR reverse serial loopback, and post-CDR
reverse serial loopback to write only (WO).
Removed optional
rx_sync_word_err
,
rx_scrm_err
, and
rx_framing_err
status bits.
Changed definition of
phy_mgmt_clk_reset
. This signal is active high and level sensitive.
PHY IP Core for PCI Express (PIPE)
December
2011
1.4
Changed definition of
phy_mgmt_clk_reset
. This signal is active high and level sensitive.
Custom
December
2011
1.4
Added ×N and feedback compensation options for bonded clocks.
Added Enable Channel Interface parameter which is required for dynamic reconfiguration
of transceivers.
Corrected formulas for signal width in top-level signals figure.
Changed definition of
phy_mgmt_clk_reset
. This signal is active high and level sensitive.
Low Latency PHY
December
2011
1.4
Added option to disable the embedded reset controller to allow you to create your own reset
sequence.
Added ×N and feedback compensation options for bonded clocks.
Fixed name of
phy_mgmt_reset
signal. Should be phy_mgmt_clk_reset. Also, a positive
edge on this signal initiates a reset.
Added Enable Channel Interface parameter which is required for dynamic reconfiguration
of transceivers.
Corrected formulas for signal width in top-level signals figure.
Changed definition of
phy_mgmt_clk_reset
. This signal is active high and level sensitive.
Deterministic Latency PHY
December
2011
1.4
Removed Enable tx_clkout feedback path for TX PLL from the General Options tab of the
Deterministic Latency PHY IP Core GUI. This option is unavailable in 11.1 and 11.1 SP1.
Changed definition of
phy_mgmt_clk_reset
. This signal is active high and level sensitive.
Transceiver Reconfiguration Controller
December
2011
1.4
Added duty cycle distortion (DCD) signal integrity feature.
Added PLL and channel reconfiguration using a memory initialization file (.mif).
Added ability to reconfigure PLLs, including the input reference clock or to change the PLL
that supplies the high speed serial clock to the serializer without including logic to
reconfigure channels.
Corrected values for RX equalization gain. 0–4 are available.
Corrected logical number in Interface Ordering with Multiple Transceiver PHY Instances.
Increased the number of channels that can share a PLL from 5 to 11 when feedback
compensation is used.
Increased the number of channels that can connect to the Transceiver Reconfiguration
Controller from 32 to 64.
Added section on requirements for merging PLLs.
Date Version Changes Made
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