Altera Stratix II GX Embedded Gigabit Ethernet MAC/PHY - Manual (Page 15)

Stratix II GX Embedded Gigabit Ethernet MAC / PHY
User's Guide
Version 1.0 - October 2005
Pause Frame. This simulates a usual flow-control
chain correctly.
If disabled (False) Pause Frames sent by the
MAC are ignored by the Testbench and the RX
(PHY) Frame generator will never pause. This can
be used to test the MACs FIFO overflow behavior.
This option has no effect, if loopback mode is
enabled (i.e. Frame generation in RX path is set
0).
TB_TRIGGERXOFF Integer
XOFF Pause Frame Generation. Set the time for
to generate a XOFF Frame with the Core
command pin xoff_gen. When set to 0, XOFF
Frame generation is disabled.
0
TB_TRIGGERXON Integer
XON Pause Frame Generation. Set the time for to
generate a XON Frame with the Core command
pin xon_gen. When set to 0, XON Frame
generation is disabled.
0
Table 7: MAC Configuration Options
Option Unit Description Default
TX_FIFO_SE Integer
Set the Transmit FIFO Section empty threshold
to any value between 0 and 63 (Maximum
memory depth).
16
TX_FIFO_SF Integer
Set the Transmit FIFO Section full threshold to
any value between 0 and 63 (Maximum memory
depth).
16
RX_FIFO_SE Integer
Set the Receive FIFO Section empty threshold
to any value between 0 and 63 (Maximum
memory depth).
0
RX_FIFO_SF Integer
Set the Receive FIFO Section full threshold to
any value between 0 and 63 (Maximum memory
depth).
16
TB_ENA_AUTONEG Boolean
Enable Auto-Negotiation. When selected, the
Core performs auto-negotiation to check the link
with the Link Partner before simulation starts.
After simulation, the Auto-Negotiation is
restarted with the Core signal an_enable set to
'0'. When disabled, non Auto-Negotiation is
performed.
True
TB_IGNORE_PAUSE Boolean
Ignore Pause Frames. When enabled, received
Pause Frames are ignored, when disable,
Pause Frames are decoded.
False
TB_PAD_ENA Boolean
Enable Receive Padding Remove. When
enabled, Frames are provided on the Client
Interface without padding, when disabled,
Frames are provided on the Client Interface with
padding.
True
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