Figure 206. Dynamic Reconfiguration of Transmitter Channel During Device Operation
Device Power Up
pll_cal_busy
tx_cal_busy
tx_analogreset
pll_powerdown
pll_locked
tx_digitalreset
1 3
5
2
Legal
Reconfiguration
Window
4
t
req
t
req
t
tx_digitalreset
(1)
t
req
= 70 μs
Note:
(1) The Arria 10 Default setting presets ttx_digitalreset to 70 μs.
(2) Area in gray is don’t care zone.
RX Channel
The numbers in this list correspond to the numbers in the following figure.
1.
Assert rx_analogreset and rx_digitalreset. Ensure that rx_cal_busy is
low. You must reset the PCS by asserting rx_digitalreset every time you
assert rx_analogreset.
2. Perform dynamic reconfiguration after minimum 70 μs of asserting
rx_analogreset.
3.
Deassert rx_analogreset after performing dynamic reconfiguration.
4.
The rx_is_lockedtodata signal goes high after the CDR acquires lock.
5.
Ensure rx_is_lockedtodata is asserted for t
LTD
(minimum of 4 μs) before
deasserting rx_digitalreset.
4. Resetting Transceiver Channels
UG-01143 | 2018.06.15
Intel
®
Arria
®
10 Transceiver PHY User Guide
426
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