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Chapter 12: Stratix V Transceiver Native PHY IP Core 12–25
10G PCS Parameters
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
Interlaken Frame Synchronizer
The Interlaken frame synchronizer block achieves lock by looking for four
synchronization words in consecutive metaframes. After synchronization, the frame
synchronizer monitors the scrambler word in the metaframe and deasserts the lock
signal after three consecutive mismatches and starts the synchronization process
again. Lock status is available to the FPGA fabric. Table 12–23 describes the Interlaken
frame synchronizer parameters.
f For more information refer to the Frame Synchronizer section in Transceiver Architecture
in Stratix V Devices.
Enable
tx_10g_frame_diag_status port
On/Off
When you turn this option On, the 10G PCS includes the
tx_10g_frame_diag_status
2-bit input port.
This port contains the lane Status Message from the framing
layer Diagnostic Word, bits[33:32]. This message is inserted into
the next Diagnostic Word generated by the frame generation
block. The message must be held static for 5 cycles before and 5
cycles after the
tx_frame
pulse.
Enable tx_10g_frame_burst_en
port
On/Off
When you turn this option On, the 10G PCS includes the
tx_10g_frame_burst_en
input port.
This port controls frame generator data reads from the TX FIFO.
The value of this signal is latched once at the beginning of each
Metaframe. It controls whether data is read from the TX FIFO or
SKIP Words are inserted for the current Metaframe. It must be
held static for 5 cycles before and 5 cycles after the
tx_frame
pulse.
When
tx_10g_frame_burst_en
is 0, the frame generator does
not read data from the TX FIFO for current Metaframe. It insert
SKIPs. When
tx_10g_frame_burst_en
is 1, the frame
generator reads data from the TX FIFO for current Metaframe.
Table 12–22. Interlaken Frame Generator Parameters (Part 2 of 2)
Parameter Range Description
Table 12–23. Interlaken Frame Synchronizer Parameters (Part 1 of 2)
Parameter Range Description
teng_tx_framsync_enable On/Off
When you turn this option On, the 10G PCS frame generator is
enabled.
Enable rx_10g_frame port On/Off
When you turn this option On, the 10G PCS includes the
rx_10g_frame
output port. This signal is asserted to indicate the
beginning of a new metaframe inside.
Enable rx_10g_frame_lock_port On/Off
When you turn this option On, the 10G PCS includes the
rx_10g_frame_lock
output port. This signal is asserted to
indicate that the frame synchronization state machine has
achieved frame lock.
Enable rx_10g_frame_mfrm_err
port
On/Off
When you turn this option On, the 10G PCS includes the
rx_10g_frame_mfrm_err
output port. This signal is asserted to
indicate an metaframe error.
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