Altera UG-01080 Guía de usuario Pagina 100

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Chapter 5: 1G/10 Gbps Ethernet PHY IP Core 5–12
Register Interface and Register Descriptions
November 2012 Altera CorporationAltera Transceiver PHY IP Core
User Guide
f Refer to the “Typical Slave Read and Write Transfers” and “Master Transfers” sections in
the “Avalon Memory-Mapped Interfaces” chapter of the Avalon Interface Specifications for
timing diagrams.
1G/10GbE Registers
Table 514 specifies the registers that you can access over the Avalon-MM PHY
management interface using word addresses and a 32-bit embedded processor. A
single address space provides access to all registers.
1 Unless otherwise indicated, the default value of all registers is 0.
1 Writing to reserved or undefined register addresses may have undefined side effects.
mgmt_addr[7:0]
Input 9-bit Avalon-MM address. Refer to for the address fields.
mgmt_writedata[31:0]
Input Input data.
mgmt_readdata[31:0]
Output Output data.
mgmt_write
Input Write signal. Asserted high.
mgmt_read
Input Read signal. Asserted high.
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.
Table 5–13. Avalon-MM PHY Management Signals
Signal Name Direction Description
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