
Gearbox
The gearbox adapts the PMA data width to a wider PCS data width when the PCS is not two or four times
the PMA width.
Table 14-34: Gearbox Parameters
Parameter Range Description
Enable TX data polarity inversion On/Off When you turn this option On, the
gearbox inverts the polarity of TX data
allowing you to correct incorrect
placement and routing on the PCB.
Enable TX data bitslip On/Off When you turn this option On, the TX
gearbox operates in bitslip mode.
Enable RX data polarity inversion On/Off When you turn this option On, the
gearbox inverts the polarity of RX data
allowing you to correct incorrect
placement and routing on the PCB.
Enable RX data bitslip On/Off When you turn this option On, the 10G
PCS RX block synchronizer operates in
bitslip mode.
Enable tx_10g_bitslip port On/Off When you turn this option On, the 10G
PCS includes the tx_10g_bitslip input
port. The data slips 1 bit for every
positive edge of the tx_10g_bitslip
input. The maximum shift is <
pcswidth> -1 bits, so that if the PCS is 64
bits wide, you can shift 0-63 bits.
Enable rx_10g_bitslip port On/Off When you turn this option On, the 10G
PCS includes the rx_10g_bitslip input
port. The data slips 1 bit for every
positive edge of the rx_10g_bitslip
input. he maximum shift is < pcswidth>
-1 bits, so that if the PCS is 64 bits wide,
you can shift 0-63 bits.
PRBS Verifier
You can use the PRBS pattern generators for verification or diagnostics. The pattern generator blocks
support the following patterns:
• Pseudo-random binary sequence (PRBS)
• Pseudo-random pattern
• Square wave
14-42
10G PCS Parameters for Arria V GZ Native PHY
UG-01080
2015.01.19
Altera Corporation
Arria V GZ Transceiver Native PHY IP Core
Send Feedback
Komentarze do niniejszej Instrukcji