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Chapter 13: Arria V Transceiver Native PHY IP Core 13–19
Standard PCS Interface Ports
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
tx_std_pcfifo_full
[<n>-1:0]
Output Yes TX phase compensation FIFO status full flag.
tx_std_pcfifo_empty
[<n>-1:0]
Output Yes TX phase compensation FIFO status empty flag.
Byte Ordering
rx_std_byteorder_ena
[<n>-1:0]
Input No
Byte ordering enable. When this signal is asserted, the byte
ordering block initiates a byte ordering operation if the Byte
ordering control mode is set to manual. Once byte ordering
has occurred, you must deassert and reassert this signal to
perform another byte ordering operation. This signal is an
synchronous input signal; however, it must be asserted for at
least 1 cycle of
rx_std_clkout
.
rx_std_byteorder_flag
[<n>-1:0]
Output Yes
Byte ordering status flag. When asserted, indicates that the
byte ordering block has performed a byte order operation.
This signal is asserted on the clock cycle in which byte
ordering occurred. This signal is synchronous to the
rx_std_clkout
clock. You must a synchronizer this signal.
Byte Serializer and Deserializer
rx_std_byterev_ena
[<n>-1:0]
Input No
This control signal is available in when the PMA width is 16
or 20 bits. When asserted, enables byte reversal on the RX
interface.
8B/10B
rx_std_polinv[<n>-1:0]
Input No
Polarity inversion for the 8B/10B decoder, When set, the RX
channels invert the polarity of the received data. You can use
this signal to correct the polarity of differential pairs if the
transmission circuitry or board layout mistakenly swapped
the positive and negative signals. The polarity inversion
function operates on the word aligner input.
tx_std_polinv[<n>-1:0]
Input No
Polarity inversion, part of 8B10B encoder, When set, the TX
interface inverts the polarity of the TX data.
Rate Match FIFO
rx_std_rmfifo_empty[<n>-
1:0]
Output No
Rate match FIFO empty flag. When asserted, the rate match
FIFO is empty.
rx_std_rmfifo_full[<n>-
1:0]
Output No
Rate match FIFO full flag. When asserted the rate match FIFO
is full. You must synchronize this signal.
Word Aligner
rx_std_bitrev_ena[<n>-
1:0]
Input No
When asserted, enables bit reversal on the RX interface. Bit
order may be reversed if external transmission circuitry
transmits the most significant bit first. When enabled, the
receive circuitry receives all words in the reverse order. The
bit reversal circuitry operates on the output of the word
aligner.
Table 13–19. Standard PCS Interface Ports (Part 2 of 3)
Name Dir
Synchronou
s to
tx_std_core
clkin/
rx_std_core
clkin
Description
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