PXB4340E Datasheet, PDF (83/185 Pages) Infineon Technologies AG – ICs for Communications

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Read/write Address D0_H
Value after reset 0000_H
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
UUPED UTOPIA parity error detected upstream.
DUPED UTOPIA parity error detected downstream.
UUSOCE UTOPIA start of cell or cell length error detected upstream.
DUSOCE UTOPIA start of cell or cell length error detected
downstream.
UEDCER
CRC-10 error detected in OAM cell in upstream direction.
This error indication is also stored in Dword2, bit 13 in the
upstream connection RAM entry of the respective LCI (see
VHFWLRQ 3.9.1.3).
DEDCER
CRC-10 error detected in OAM cell in downstream
direction. This error indication is also stored in Dword2,
bit 13 in the downstream connection RAM entry of the
respective LCI (see VHFWLRQ 3.9.3.3).
RXCEL
Indicates a non-empty receive buffer. It is cleared
automatically after 27 read accesses of the RXRCEL
register, i.e. after read-out of a complete cell. If further cells
are in the receive buffer this bit is set again immediately.
RXOV
Indicates an overflow of the receive buffer; is set if at least
one cell has been discarded due to a full receive cell buffer.
OCIF
Bit OCIF is set if
• an OAM cell generated by the SCAN could not be
inserted in downstream direction;
• BR or FM cells could not be inserted in downstream
direction;
• "central control" loopback of LB cells could not be
performed because insertion in downstream direction
was not possible;
• FM cells transformed to BR cells could not be inserted in
downstream direction;
This bit is the OR function result of all bits of CIFL and
CIFH registers.
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Is set if an OAM cell generated by the SCAN could not be inserted in
upstream direction. This occurs if during the insertion window defined in
register SCCONF2 the upstream internal 32-cell buffer filling was
constantly beyond the insertion threshold defined in register
OAMTHRU.
DUTBO UTOPIA Transmit-Buffer Overflow downstream.
Data Sheet
3-83
04.2000