Altera Transceiver PHY IP Core User Manual
Page 397
Parameter
Range
Description
Enable tx_std_polinv port
On/Off
When you turn this option On, the
tx_
std_polinv
input is enabled. You can
use this control port to swap the
positive and negative signals of a serial
differential link if they were
erroneously swapped during board
layout.
Enable rx_std_polinv port
On/Off
When you turn this option On, the
rx_
std_polinv
input is enabled. You can
use this control port to swap the
positive and negative signals of a serial
differential link if they were
erroneously swapped during board
layout.
Enable tx_std_elecidle port
On/Off
When you turn this option On, the
tx_
std_elecidle
input port is enabled.
When this signal is asserted, it forces
the transmitter to electrical idle.
Enable rx_std_signaldetect port
On/Off
When you turn this option On, the
optional
rx_std_signaldetect
output
port is enabled. This signal is required
for the PCI Express protocol. If
enabled, the signal threshold detection
circuitry senses whether the signal level
present at the RX input buffer is above
the signal detect threshold voltage that
you specified.
For SATA / SAS applications, enable
this port and set the following QSF
assignments to the transceiver receiver
pin:
•
set_instance_assignment -name
XCVR_RX_SD_ENABLE ON
•
set_instance_assignment -name
XCVR_RX_SD_THRESHOLD 7
•
set_instance_assignment -name
XCVR_RX_COMMON_MODE_VOLTAGE
VTT_OP55V
•
set_instance_assignment -name
XCVR_RX_SD_OFF 1
•
set_instance_assignment -name
XCVR_RX_SD_ON 2
13-22
Bit Reversal and Polarity Inversion
UG-01080
2015.01.19
Altera Corporation
Arria V Transceiver Native PHY IP Core