Xilinx Virtex-5 RocketIO GTP User Manual

Virtex-5 RocketIO GTP Transceiver User Guide www.xilinx.com 31
UG196 (v1.3) May 25, 2007
Ports and Attributes
R
Table 1-4 summarizes the GTP_DUAL tile attributes and provides links to their detailed
descriptions.
TXPOWERDOWN0[1:0]
TXPOWERDOWN1[1:0]
In Async Powers down TX lanes.
Power Control
(page 81), PCI Express
Receive Detect Support
(page 117), TX
OOB/Beacon Signaling
(page 119)
TXPREEMPHASIS0[2:0]
TXPREEMPHASIS1[2:0]
In Async
Controls the relative strength of the
main drive and the pre-emphasis.
Configurable TX Driver
(page 113)
TXRESET0
TXRESET1
In Async
Resets the PCS of the GTP transmitter,
including the phase adjust FIFO, the
8B/10B encoder, and the FPGA TX
interface.
Reset (page 73), FPGA
TX Interface (page 91)
TXRUNDISP0[1:0]
TXRUNDISP1[1:0]
Out TXUSRCLK2
Indicates the current running disparity
of the 8B/10B encoder.
Configurable 8B/10B
Encoder (page 100)
TXUSRCLK0
TXUSRCLK1
In N/A
Provides a clock for the internal TX PCS
datapath.
FPGA TX Interface
(page 91), TX Buffering,
Phase Alignment, and
Buffer Bypass (page 104)
TXUSRCLK20
TXUSRCLK21
In N/A
Synchronizes the FPGA logic with the
TX interface.
FPGA TX Interface
(page 91)
Table 1-3: GTP_DUAL Port Summary (Continued)
Port Dir Domain Description Section (Page)
Table 1-4: GTP_DUAL Attribute Summary
Attribute Description Section (Page)
AC_CAP_DIS_0
AC_CAP_DIS_1
Disables built-in AC coupling capacitors on
receiver inputs when set to TRUE.
RX Termination and
Equalization (page 126)
ALIGN_COMMA_WORD_0
ALIGN_COMMA_WORD_1
Controls alignment of detected commas
within a multi-byte datapath.
Configurable Comma
Alignment and Detection
(page 151)
CHAN_BOND_1_MAX_SKEW_0
CHAN_BOND_1_MAX_SKEW_1
CHAN_BOND_2_MAX_SKEW_0
CHAN_BOND_2_MAX_SKEW_1
Sets the maximum amount of lane skew
allowed when using channel bonding. Must
be set less than 1/2 the minimum distance
between channel bonding sequences.
Configurable Channel Bonding
(Lane Deskew) (page 176)
CHAN_BOND_LEVEL_0
CHAN_BOND_LEVEL_1
Indicates the amount of internal pipelining
used for the elastic buffer control signals.
Configurable Channel Bonding
(Lane Deskew) (page 177)
CHAN_BOND_MODE_0
CHAN_BOND_MODE_1
Defines the channel bonding mode of
operation for the transceiver.
Configurable Channel Bonding
(Lane Deskew) (page 177)

Xilinx Virtex-5 RocketIO GTP Specifications

General

Brand	Xilinx
Model	Virtex-5 RocketIO GTP
Category	Transceiver
Language	English