Altera Triple Speed Ethernet MegaCore Function User Manual
Page 199
Default
Description
Parameter
1
0: Disables padding.
1: If the length of frames generated by the GMII/RGMII/MII Ethernet
frame generator is less than the minimum frame length (64 bytes), the
generator inserts padding bytes to the frames to make up the minimum
length.
TB_ENA_PADDING
0
0: Only basic frames are generated.
1: Enables VLAN frames generation. This value specifies the number
of basic frames generated before a VLAN frame is generated followed
by a stacked VLAN frame.
TB_ENA_VLAN
0
Specifies the number of packets to be read from the receive FIFO before
reading is suspended. You can use this parameter to test FIFO overflow
and flow control.
TB_STOPREAD
1000
Specifies the number of clock cycles before the Avalon-ST monitor
stops reading from the receive FIFO.
TB_HOLDREAD
0
0: Normal behavior.
1: Drives the Avalon-ST error signal high to simulate erroneous frames
transmission.
TB_TX_FF_ERR
0
Specifies the number of clock cycles from the start of simulation before
the
xoff_gen
signal is driven.
TB_TRIGGERXOFF
0
Specifies the number of clock cycles from the start of simulation before
the
xon_gen
signal is driven high.
TB_TRIGGERXON
0
Specifies which frame is received with collision. Valid in fast Ethernet
and half-duplex mode only.
RX_COL_FRM
0
Specifies which nibble within the frame collision occurs.
RX_COL_GEN
0
Specifies which frame is transmitted with a collision. Valid in fast
Ethernet and half-duplex mode only.
TX_COL_FRM
0
Specifies which nibble within the frame collision occurs on the transmit
path.
TX_COL_GEN
0
Specifies the number of consecutive collisions during retransmission.
TX_COL_NUM
0
Specifies the delay, in nibbles, between collision and retransmission.
TX_COL_DELAY
1
0: GMII frame generator does not respond to pause frames.
1: Enables flow control in the GMII frame generator.
TB_PAUSECONTROL
0
Enable / Disable MDIO simulation.
TB_MDIO_SIMULATION
Supported in configurations that contain the 1000BASE-X/SGMII PCS
0
0: Disables half-duplex mode.
1: Enables half-duplex mode.
TB_SGMII_HD
Simulation Parameters
Altera Corporation
UG-01008
Test Configuration Parameters
B-4
2014.06.30