
Table 6-14: Avalon-MM PHY Management Interface
Signal Name Direction Description
phy_mgmt_clk Input
Avalon-MM clock input.
There is no frequency restriction for Stratix V
devices; however, if you plan to use the same clock
for the PHY management interface and transceiver
reconfiguration, you must restrict the frequency
range of phy_mgmt_clk to 100–150 MHz to meet
the specification for the transceiver reconfiguration
clock. For Arria II GX, Cyclone IV GX, HardCopy
IV, and Stratix IV GX the frequency range is 37.5–
50 MHz.
phy_mgmt_clk_reset Input Global reset signal that resets the entire XAUI PHY.
This signal is active high and level sensitive.
phy_mgmt_addr[8:0] Input 9-bit Avalon-MM address.
phy_mgmt_writedata[31:0] Input 32-bit input data.
phy_mgmt_readdata[31:0] Output 32-bit output data.
phy_mgmt_write Input Write signal. Asserted high.
phy_mgmt_read Input Read signal. Asserted high.
phy_mgmt_waitrequest Output When asserted, indicates that the Avalon-MM slave
interface is unable to respond to a read or write
request. When asserted, control signals to the
Avalon-MM slave interface must remain constant.
For more information about the Avalon-MM interface, including timing diagrams, refer to the Avalon
Interface Specifications.
The following table specifies the registers that you can access using the Avalon-MM PHY management
interface using word addresses and a 32-bit embedded processor. A single address space provides access
to all registers.
Note:
Writing to reserved or undefined register addresses may have undefined side effects.
Table 6-15: XAUI PHY IP Core Registers
Word Addr Bits R/W Register Name Description
PMA Common Control and Status Registers
0x021 [31:0] RW cal_blk_powerdown Writing a 1 to channel <n> powers down the
calibration block for channel <n>. This
register is not available for Stratix V devices.
UG-01080
2015.01.19
XAUI PHY Register Interface and Register Descriptions
6-19
XAUI PHY IP Core
Altera Corporation
Send Feedback
Kommentare zu diesen Handbüchern