PXB4340E Datasheet, PDF (76/185 Pages) Infineon Technologies AG – ICs for Communications

 3+< (UURU ,QGLFDWLRQ  3+<(55/
Read/write Address B4_H
Value after reset 0000_H

PHYERRL(15:8)

PHYERRL(7:0)
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5HJLVWHU 'HVFULSWLRQ


PHYERRL(15:0)
These bits have a one-to-one correspondence with the PHYs that are
connected to the switch port. In case of an interruption of the physical
transmission (e.g. laser failure) the microprocessor sets the respective
PHYERR bit. The SCAN mechanism uses this indication together with
the PHY number stored in each connection entry of the upstream
external RAM (see VHFWLRQ ) to generate AIS cells.
PHYERR bits are used in upstream direction only.
 3+< (UURU ,QGLFDWLRQ  3+<(55+
Read/write Address B5_H
Value after reset 0000_H


Unused


PHYERRL(23:16)
PHYERRH(23:16)
These bits have a one-to-one correspondence with the PHYs that are
connected to the switch port. In case of an interruption of the physical
transmission (e.g. laser failure) the microprocessor sets the respective
PHYERR bit. The SCAN mechanism uses this indication together with
the PHY number stored in each connection entry of the upstream
external RAM (see VHFWLRQ ) to generate AIS cells.
PHYERR bits are used in upstream direction only.
Data Sheet
3-76
04.2000