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13–8 Chapter 13: Arria V Transceiver Native PHY IP Core
Standard PCS Parameters
Altera Transceiver PHY IP Core November 2012 Altera Corporation
User Guide
Standard PCS Parameters
Figure 13–2 shows the complete datapath and clocking for the Standard PCS. You use
parameters available in the GUI to enable or disable the individual blocks in the
Standard PCS.
f For more information about the Standard PCS, refer to the PCS Architecture section in
the Transceiver Architecture in Arria V Devices.
Table 13–10 describes the general and datapath options for the Standard PCS.
Figure 13–2. The Standard PCS Datapath
Transmitter PCS
Transmitter PMA
Receiver PMA
Receiver PCS
FPGA Fabric
Byte Ordering
RX Phase
Compensation
FIFO
Byte Deserializer
8B/10B Decoder
Rate Match FIFO
Word Aligner
Deserializer
CDR
TX Phase
Compensation
FIFO
Byte Serializer
8B/10B Encoder
TX Bit Slip
Serializer
rx_serial_data tx_serial_data
tx_parallel data
rx_parallel data
/2
/2
tx_std_coreclkin
rx_std_coreclkin
Parallel Clock
Serial
Clock
Serial Clock
Parallel Clock
tx_std_clkout
rx_std_clkout
Table 13–10. General and Datapath Parameters (Part 1 of 2)
Parameter Range Description
Standard PCS protocol mode
basic
cpri
gige
Specifies the protocol that you intend to implement with the
Native PHY. The protocol mode selected guides the MegaWizard
in identifying legal settings for the Standard PCS datapath.
Use the following guidelines to select a protocol mode:
basic–select this mode for when none of the other options are
appropriate. You should also select this mode to enable
diagnostics, such as loopback.
cpri–select this mode if you intend to implement CPRI or
another protocol that requires deterministic latency. Altera
recommends that you select the appropriate CPRI preset for
the CPRI protocol.
gige–select this mode if you intend to implement either the
1.25 Gbps or 2.5 Gbps Ethernet protocol. Altera recommends
that you select the appropriate preset for the Ethernet
protocol.
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