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Chapter 16: Transceiver Reconfiguration Controller IP Core 16–25
PLL Reconfiguration Registers
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
PLL Reconfiguration Registers
Table 16–20 lists the PLL reconfiguration registers that you can access using
Avalon-MM read and write commands on reconfiguration management interface.
PLL reconfiguration is only available for Stratix V devices.
1 All undefined register bits are reserved.
Table 16–20. PLL Reconfiguration Registers
Addr Bits R/W Register Name Description
7’h40 [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.
When reconfiguring the reference clock for the TX PLL you
must specify the PLL's logical channel number. When
reconfiguring the reference clock for the CDR you must
specify the channel's logical channel number.
7’h41 [9:0] R
physical channel address
The physical channel address. The Transceiver
Reconfiguration Controller maps the logical address to the
physical address.
7’h42
[9] R
control and status
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 address offset is invalid.
[8] R
MIF Busy
. When asserted, indicates that a reconfiguration
operation is in progress.
[1] W
Read
. Writing a 1 to this bit specifies a read operation.
[0] W
Write
. Writing a 1 to this bit specifies a write operation.
7’h43 [3:0] RW
pll offset
Specifies the 4-bit register address used for indirect to the
PLL registers on the reconfiguration bus. Refer to
Table 16–21 for offsets and values.
7’h44 [15:0] RW
data
Specifies the read or write data.
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