Figure 2-14: Two Non-Bonded Receiver Channels with Rate Match FIFO Enabled
Local Clock Divider
CMU PLL
Receiver PMA Ch3
Receiver PCS Ch3
Local Clock Divider
CMU PLL
Receiver PMA Ch4
Receiver PCS Ch4
Local Clock Divider
CMU PLL
Receiver PMA Ch5
Receiver PCS Ch5
Deserializer
CDR
rx_serial_data
Clock Divider
Deserializer
CDR
rx_serial_data
Clock Divider
Deserializer
CDR
rx_serial_data
Clock Divider
To Transmitter Channel
Parallel Clock
(from the
Clock Divider)
Parallel Clock
(Recovered)
Input
Reference
Clock
To Transmitter Channel
Parallel Clock
(from the
Clock Divider)
Parallel Clock
(Recovered)
Input
Reference
Clock
To Transmitter Channel
Parallel Clock
(from the
Clock Divider)
Parallel Clock
(Recovered)
Input
Reference
Clock
Both Parallel and Serial Clocks
Serial Clock
Parallel Clock
Unused Resources
Data Path
Channels 0, 1, 2
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Receiver Bonded Channel Configurations
Receiver channels can only be bonded in configurations where rate match FIFOs are enabled. When bonded,
the receiver PCS requires the parallel clock (recovered) and the parallel clock from the central clock divider
in channel 1 or 4.
For more information about the clocking scheme used in different configurations, refer to the
Transceiver Protocol Configurations in Cyclone V Devices
and
Transceiver Custom Configurations in
Cyclone V Devices
chapters.
Note:
Altera Corporation
Transceiver Clocking in Cyclone V Devices
2-17
Receiver Bonded Channel Configurations
CV-53002
2013.05.06