Altera Transceiver PHY IP Core Manual de usuario Pagina 551

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Transceiver Reconfiguration Controller Streamer Module Registers
The Streamer module defines the following two modes for channel and PLL reconfiguration:
Mode 0—MIF. Uses a memory initialization file (.mif) to reconfigure settings.
Mode 1—Direct Write. Uses a series of Avalon-MM writes on the reconfiguration management
interface to change settings.
Note: All undefined register bits are reserved.
Table 16-24: Streamer Module Registers
PHY Addr Bits R/W Register Name Description
7’h38 [9:0] RW logical channel number The logical channel number. Must be specified
when performing dynamic updates. The
Transceiver Reconfiguration Controller maps
the logical address to the physical address.
7’h3A
[9] R
control and status
Error. When asserted, indicates an error. This
bit is asserted if any of the following conditions
occur:
The channel address is invalid.
The PHY address is invalid.
The offset register address is invalid.
[8] R Busy. When asserted, indicates that a reconfi‐
guration operation is in progress.
[3:2] RW
Mode. The following encodings are defined:
2’b00: MIF. This mode continuously reads
and transfers a .mif file, which contains the
reconfiguration data.
2’b01: Direct Write. In this mode, you
specify a logical channel, a register offset,
and data. Depending on the logical channel
specified, the Transceiver Reconfiguration
Controller may mask some of the data
specified to prevent read-only values that
were optimized during startup, from being
over-written. In particular, this mode
protects the following settings:
Decision feedback equalization controls
RX buffer offset calibration adjustments
Duty cycle distortion adjustments
PMA clock settings
2’b10: Reserved
2’b11: Reserved
16-34
Transceiver Reconfiguration Controller Streamer Module Registers
UG-01080
2015.01.19
Altera Corporation
Transceiver Reconfiguration Controller IP Core Overview
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