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Altera Transceiver PHY IP Core User Manual

Page 50

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Word Addr

Bit

R/W

Name

Description

0x044

[31:0]

RW

reset_fine_control

You can use the

reset_fine_

control

register to create your own

reset sequence. The reset control

module performs a standard reset

sequence at power on and whenever

the

phy_mgmt_clk_reset

is asserted.

Bits [31:4,0] are reserved.

[31:4,0]

RW

Reserved

It is safe to write 0s to reserved bits.

[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.

[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.

[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.

PMA Channel Control and Status

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>.

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>.

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>.

3-26

10GBASE-R PHY Register Interface and Register Descriptions

UG-01080

2015.01.19

Altera Corporation

10GBASE-R PHY IP Core

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