Altera Transceiver PHY IP Core - Manual (Page 530)

The following table lists the address range for the Transceiver Reconfiguration Controller and the reconfi‐
guration and signal integrity modules. The Avalon-MM interface uses byte addresses.
Table 16-8: Transceiver Reconfiguration Controller Address Map
Address Link
7'h08-7'h0C PMA Analog Control Registers
7'h10-7'h14 EyeQ Registers
7'h18-7'h1C DFE Registers
7'h28-7'h2C AEQ Registers
7'h30-7'h34 ATX PLL Calibration Registers
7'h38-7'h3C Streamer Module Registers
7'h40-7'h44 PLL Reconfiguration
Transceiver Reconfiguration Controller Calibration Functions
The Transceiver Reconfiguration Controller supports various calibration functions to enhance the
performance and operation of any connected transceiver PHY IP core. Refer to Resource Utilization for
Stratix V Devices for the resource utilization of these calibration functions.
Offset Cancellation
The offset cancellation function adjusts the offsets within the RX PMA and the CDR parameters for
process variations to achieve optimal performance.
Offset cancellation runs only once upon power-up. The RX buffers are unavailable while this function is
running. This calibration feature is run automatically and enabled by default. Arria V and Cyclone V
devices do not require offset cancellation for the RX buffer.
Duty Cycle Calibration
The TX clocks generated by the CMU and travel across the clock network may introduce duty cycle
distortion (DCD). DCD calibration function reduces this distortion.
DCD runs once during device power up and you can manually trigger DCD after power up. Altera
recommends that you enable DCD for Arria V and Cyclone V devices if either of the following conditions
is true:
• The data rate is greater than or equal to 4.9152 Gbps
• The design dynamically reconfigures the TX PLL and the data rate is greater than or equal to 4.9152
Gbps
Related Information
AN 676: Using the Arria V and Cyclone V Reconfiguration Controller to Perform Dynamic
Reconfiguration
UG-01080
2015.01.19
Transceiver Reconfiguration Controller Calibration Functions 16-13
Transceiver Reconfiguration Controller IP Core Overview Altera Corporation
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