
7–14 Chapter 7: Interlaken PHY IP Core
Register Interface and Register Descriptions
Altera Transceiver PHY IP Core November 2012 Altera Corporation
User Guide
Reset Controls –Manual Mode
0x044
—RW
reset_fine_control
You can use the
reset_fine_control
register to create
your own reset sequence. The reset control module,
illustrated in Transceiver PHY Top-Level Modules, performs
a standard reset sequence at power on and whenever the
phy_mgmt_clk_reset
is asserted. Bits [31:4, 0] are
reserved.
The Interlaken PHY IP requires the use of the embedded
reset controller to initiate the correct the reset sequence. A
hard reset to
phy_mgmt_clk_reset
and
mgmt_rst_reset
is required for Interlaken PHY IP.
Altera does not recommend use of a soft reset or the use of
these reset register bits for Interlaken PHY IP.
[3] RW
reset_rx_digital
Writing a 1 causes the RX digital reset signal to be asserted,
resetting the RX digital channels enabled in
reset_ch_bitmask. You must write a 0 to clear the
reset condition.
[2] RW
reset_rx_analog
Writing a 1 causes the internal RX digital reset signal to be
asserted, resetting the RX analog logic of all channels
enabled in reset_ch_bitmask. You must write a 0 to
clear the reset condition.
[1] RW
reset_tx_digital
Writing a 1 causes the internal TX digital reset signal to be
asserted, resetting all channels enabled in
reset_ch_bitmask. You must write a 0 to clear the
reset condition.
PMA Control and Status Registers
0x061 [31:0] RW
phy
_
serial
_
loopback
Writing a 1 to channel <
n
> puts channel <
n
> in serial
loopback mode. For information about pre- or post-CDR
serial loopback modes, refer to Loopback Modes.
0x064 [31:0] RW
pma_rx_set_locktodata
When set, programs the RX CDR PLL to lock to the
incoming data. Bit <n> corresponds to channel <n>. By
default, the Interlaken PHY IP configures the CDR PLL in
Auto lock Mode. This bit is part of the CDR PLL Manual
Lock Mode which is not the recommended usage.
0x065 [31:0] RW
pma_rx_set_locktoref
When set, programs the RX CDR PLL to lock to the
reference clock. Bit <n> corresponds to channel <n>. By
default, the Interlaken PHY IP configures the CDR PLL in
Auto lock Mode. This bit is part of the CDR PLL Manual
Lock Mode which is not the recommended usage.
0x066 [31:0] RO
pma_rx_is_lockedtodata
When asserted, indicates that the RX CDR PLL is locked to
the RX data, and that the RX CDR has changed from LTR to
LTD mode. Bit <n> corresponds to channel <n>.
00x067 [31:0] RO
pma_rx_is_lockedtoref
When asserted, indicates that the RX CDR PLL is locked to
the reference clock. Bit <n> corresponds to channel <n>.
0x080 [31:0] WO
indirect_addr
Provides for indirect addressing of all PCS control and
status registers. Use this register to specify the logical
channel address of the PCS channel you want to access.
Table 7–10. Interlaken PHY Registers (Part 2 of 3)
Word
Addr
Bits R/W Register Name Description
Comentarios a estos manuales