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November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
15. Cyclone V Transceiver Native PHY IP
Core
The Cyclone V Transceiver Native PHY IP Core provides direct access to all control
and status signals of the transceiver channels. Unlike other PHY IP Cores, the Native
PHY IP Core does not include an Avalon Memory-Mapped (Avalon-MM) interface.
Instead, it exposes all signals directly as ports. The Cyclone V Transceiver Native PHY
IP Core includes the Standard PCS. You can select the PCS functions and control and
status port that your transceiver PHY requires.
The Native Transceiver PHY does not include an embedded reset controller. You can
either design custom reset logic or incorporate Altera’s “Transceiver PHY Reset
Controller IP Core” to implement reset functionality.
Figure 15–1 illustrates the use of the Cyclone V Transceiver Native PHY IP Core. As
this figure illustrates, TX PLL and clock data recovery (CDR) reference clocks from the
pins of the device are input to the PLL module and CDR logic. The Standard PCS
drives TX parallel data and receives RX parallel data.
In a typical design, the separately instantiated Transceiver PHY Reset Controller
drives reset signals to Native PHY and receives calibration and locked status signal
from the Native PHY. The Native PHY reconfiguration buses connect the external
Transceiver Reconfiguration Controller for calibration and dynamic reconfiguration
of the channel and PLLs.
You specify the initial configuration when you parameterize the IP core. The
Transceiver Native PHY IP Core connects to the “Transceiver Reconfiguration
Controller IP Core” to dynamically change reference clocks, PLL connectivity, and the
channel configurations at runtime.
Figure 15–1. Cyclone Native Transceiver PHY IP Core
PLLs
PMA
altera_xcvr_native_cv
Transceiver Native PHY
RX PCS Parallel Data
TX PCS Parallel Data
CDR Reference Clock
TX PLL Reference Clock
CDR
RX Serial Data
to
FPGA fabric
Transceiver
Reconfiguration
Controller
Reconfiguration to XCVR
Reconfiguration from XCVR
TX and RX Resets
Calilbration Busy
PLL and RX Locked
Transceiver
PHY Reset
Controller
TX Serial Data
Serializer
De-
Serializer
Standard
PCS
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