Xilinx RocketIO User Manual page 28

Product Not Recommended for New Designs
R
Table 1-5: GT_CUSTOM
GT_INFINIBAND, and GT_XAUI Primitive Ports (Continued)
Port
TXUSRCLK2
Notes:
1. The GT_CUSTOM ports are always the maximum port size.
2. GT_FIBRE_CHAN and GT_ETHERNET ports do not have the three CHBOND** or ENCHANSYNC ports.
3. The port size changes with relation to the primitive selected, and also correlates to the byte mapping.
4. External ports only accessible from package pins.
28
(1)
, GT_AURORA, GT_FIBRE_CHAN
Port
I/O
Size
I 1 Clock output from a DCM that clocks transmission data and status and
reconfiguration data between the transceiver an the FPGA core. The
ratio between TXUSRCLK and TXUSRCLK2 depends on the width of
TXDATA.
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Chapter 1: RocketIO Transceiver Overview
(2) (2)
, GT_ETHERNET ,
Definition
RocketIO™ Transceiver User Guide
UG024 (v3.0) February 22, 2007