Interface to the external reset controller, Interface to the external reset controller -47 – Altera CPRI v6.0 MegaCore Function User Manual
Page 77
The Avalon-MM interface implements a standard memory-mapped protocol. You can connect an Avalon
master to this bus to access the registers of the embedded Arria 10 Native PHY IP core.
Table 3-25: CPRI v6.0 IP Core Arria 10 Transceiver Reconfiguration Interface Signals
The
reconfig_clk
clocks the signals on the CPRI v6.0 IP core Arria 10 transceiver reconfiguration interface.
Signal Name
Direction
Description
reconfig_clk
Input
Clocks the signals on the CPRI v6.0 transceiver reconfigura‐
tion interface. Supports frequency range 100–150 MHz.
reconfig_reset
Input
Asynchronous active-high reset signal. Resets the CPRI v6.0
Arria 10 transceiver reconfiguration interface and all of the
registers to which it provides access.
reconfig_write
Input
You must assert this signal to request a write transfer.
reconfig_read
Input
You must assert this signal to request a read transfer.
reconfig_address[9:0]
Input
Address for reads and writes.
reconfig_
writedata[31:0]
Input
Write data.
reconfig_
readdata[31:0]
Output
Read data.
reconfig_waitrequest
Output
The interface is busy. Do not issue Avalon-MM commands
to this interface while this signal is high.
Related Information
For more information about the Avalon-MM protocol, including timing diagrams, refer to the Avalon
Memory-Mapped Interfaces chapter.
Information about the Arria 10 Native PHY IP core hard PCS registers that you can program through the
Arria 10 transceiver reconfiguration interface.
Detailed information about the Arria 10 transceiver registers.
Interface to the External Reset Controller
Table 3-26: CPRI v6.0 IP Core External Reset Controller Interface Signals
The CPRI v6.0 IP core requires that you generate and connect at least one external transceiver reset controller.
Signal Name
Direction
Description
xcvr_tx_analogreset
Input
Analog reset to transmitter from external reset controller.
xcvr_tx_digitalreset
Input
Digital reset to transmitter from external reset controller.
UG-01156
2014.08.18
Interface to the External Reset Controller
3-47
Functional Description
Altera Corporation