Programmer’s Guide BCM5722
10/15/07
Broadcom Corporation
Document 5722-PG101-R Transceiver Registers Page 478
SerDes link
Bit 6 of the Mode Control register indicates the link status of the SerDes interface is up. Otherwise, it reads a 0.
Copper Energy Detect
Bit 5 of the Mode Control register indicates that energy is detected in the copper interface. Otherwise, it reads a 0.
Signal Detect (SerDes Mode)
Bit 4 of the Mode Control register indicates that signal energy is detected in the SerDes interface. Otherwise, it reads a 0.
Mode Select
Bits 2:1 of the Mode Control register select one of the four available interfaces.
Enable 1000BASE-X Registers
Setting bit 0 of the Mode Control register enables the 1000BASE-X register set for addresses 00h–0Fh. Clearing bit 0 of the
Mode Control register enables the copper register set for addresses 00h–0Fh.
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