32 www.xilinx.com RocketIO™ Transceiver User Guide
UG024 (v3.0) February 22, 2007
Chapter 1: RocketIO Transceiver Overview
R
CRC_END_OF_PKT NOTE: This attribute is only valid when CRC_FORMAT = USER_MODE.
K28_0, K28_1, K28_2, K28_3, K28_4, K28_5, K28_6, K28_7, K23_7, K27_7,
K29_7, K30_7. End-of-packet (EOP) K-character for USER_MODE CRC.
Must be one of the 12 legal K-character values.
CRC_FORMAT ETHERNET, INFINIBAND, FIBRE_CHAN, USER_MODE CRC algorithm
selection. Modifiable only for GT_AURORA_n, GT_XAUI_n, and
GT_CUSTOM. USER_MODE allows user definition of Start of Packet (SOP)
and End of Packet (EOP) K-characters.
CRC_START_OF_PKT NOTE: This attribute is only valid when CRC_FORMAT = USER_MODE.
K28_0, K28_1, K28_2, K28_3, K28_4, K28_5, K28_6, K28_7, K23_7, K27_7,
K29_7, K30_7. Start-of-packet (SOP) K-character for USER_MODE CRC.
Must be one of the twelve legal K-character values.
DEC_MCOMMA_DETECT TRUE/FALSE controls the raising of per-byte flag RXCHARISCOMMA on
minus-comma.
DEC_PCOMMA_DETECT TRUE/FALSE controls the raising of per-byte flag RXCHARISCOMMA on
plus-comma.
DEC_VALID_COMMA_ONLY TRUE/FALSE controls the raising of RXCHARISCOMMA on an invalid
comma.
FALSE: Raise RXCHARISCOMMA on:
0011111xxx
(if DEC_PCOMMA_DETECT is TRUE)
and/or on:
1100000xxx
(if DEC_MCOMMA_DETECT is TRUE)
regardless of the settings of the xxx bits.
TRUE: Raise RXCHARISCOMMA only on valid characters that are in the
8B/10B translation.
MCOMMA_10B_VALUE This 10-bit vector defines minus-comma for the purpose of raising
RXCOMMADET and realigning the serial bit stream byte boundary. This
definition does not affect 8B/10B encoding or decoding. Also see
COMMA_10B_MASK.
MCOMMA_DETECT TRUE/FALSE indicates whether to raise or not raise RXCOMMADET when
minus-comma is detected.
PCOMMA_10B_VALUE This 10-bit vector defines plus-comma for the purpose of raising
RXCOMMADET and realigning the serial bit stream byte boundary. This
definition does not affect 8B/10B encoding or decoding. Also see
COMMA_10B_MASK.
PCOMMA_DETECT TRUE/FALSE indicates whether to raise or not raise RXCOMMADET when
plus-comma is detected.
REF_CLK_V_SEL 1/0:
1: Selects BREFCLK/BREFCLK2 for 2.5 Gb/s or greater serial speeds.
0: Selects REFCLK/REFCLK2 for serial speeds under 2.5 Gb/s.
Table 1-6: RocketIO Transceiver Attributes (Continued)
Attribute Description
Product Not Recommended for New Designs
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