
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
17. Transceiver PHY Reset Controller IP
Core
The Transceiver PHY Reset Controller IP Core is a highly configurable core that you
can use to reset transceivers in Arria V, Cyclone V, or Stratix V devices. This reset
controller is an alternate controller that you can use instead of the embedded reset
controller for the Custom, Low Latency, and Deterministic Latency PHY IP cores.
And, you can use it to reset the Stratix V, Arria V, Arria V GZ, and Cyclone V Native
Transceiver PHYs which do not include imbedded reset controllers. You can use it to
specify a custom reset sequence. You can also modify the clear text Verilog HDL file
provided to implement custom reset logic. The Reset Controller handles all reset
sequencing of the transceiver to enable successful operation. It provides the
functionality of the embedded reset controller and the following additional options:
■ Separate or shared reset controls per channel
■ Separate controls for the TX and RX channels and PLLs
■ Synchronization of the reset inputs
■ Hysteresis for PLL locked status inputs
■ Configurable reset timings
■ Automatic or manual reset recovery mode
Figure 17–1 illustrates the typical use of Transceiver PHY Reset Controller in a design
that includes a transceiver PHY instance and the Transceiver Reconfiguration
Controller IP Core.
Figure 17–1. Typical System Diagram for the Transceiver PHY Reset Controller IP Core
Note to Figure17–1:
(1) You can use the
phy_mgmt_clk
and
phy_mgmt_clk_reset
as the clock and reset to the user-controller reset logic.
clock (1)
reset (1)
tx_cal_busy
rx_cal_busy
Transceiver PHY Instance
Transceiver PHY
Reset Controller
rx_is_lockedtoref
pll_locked
rx_is_lockedtodata
reconfig_busy
mgmt_rst_reset
mgmt_clk_clk
reconfig_from_xcvr reconfig_to_xcvr
Transceiver
Reconfiguration
Controller
rx_digitalreset
pll_powerdown
rx_analogreset
tx_digitalreset
Receiver
PMA
CDR
Transmitter
PCS
Transmitter
PMA
Receiver
PCS
tx_analogreset
Transmitter
PLL
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