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16–28 Chapter 16: Transceiver Reconfiguration Controller IP Core
Streamer Module Registers
Altera Transceiver PHY IP Core November 2012 Altera Corporation
User Guide
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. Table 16–10 lists the Streamer’s
memory-mapped registers that you can access using Avalon-MM read and write
commands on reconfiguration management interface.
1 All undefined register bits are reserved.
Table 16–23. Streamer Module Registers (Part 1 of 2)
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’h39 [9:0] R
physical channel address
The physical channel address. 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 reconfiguration
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
[1] W
Read
. Writing a 1 to this bit triggers a read operation. This bit
is self clearing.
[0] W
Write
. Writing a 1 to this bit triggers a write operation. This
bit is self clearing.
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