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Xilinx 7 Series User Manual

Xilinx 7 Series
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46 www.xilinx.com 7 Series FPGAs GTP Transceivers User Guide
UG482 (v1.9) December 19, 2016
Chapter 2: Shared Features
Table 2-16 summarizes all resets available to the GTP transceiver TX and components affected by
them in sequential mode. Using TXPMARESET in sequential mode resets everything covered by
GTTXRESET except the TX reset state machine.
Table 2-17 lists the recommended resets for various situations.
Table 2-16: TX Initialization Reset and Component Reset Coverage
in Sequential Mode
Functional Blocks GTTXRESET TXPMARESET TXPCSRESET
TX PCS
FPGA TX Fabric Interface √√
TX 8B/10B Encoder √√√
TX Gearbox √√√
TX Buffer √√√
TX Pattern Generator √√√
TX Polarity Control √√√
TX Out-of-Band Signaling √√√
TX Reset FSM
TX PMA
TX Configuration Driver √√
TX Receiver Detect for PCI
Express Designs
√√
TX PISO √√
Table 2-17: Recommended Resets for Common Situations
Situation
Components
to be Reset
Recommended Reset
(1)
After power up and configuration Entire TX GTTXRESET
After turning on a reference clock to the PLL
being used
Entire TX GTTXRESET
After changing the reference clock to the PLL
being used
Entire TX GTTXRESET
After assertion/deassertion of
PLL[0/1]PD, for the PLL being used
Entire TX GTTXRESET
After assertion/deassertion of TXPD[1:0] Entire TX GTTXRESET
TX rate change TX PCS Reset performed automatically
TX parallel clock source reset TX PCS TXPCSRESET
After entering or exiting far-end PMA loopback Entire TX GTTXRESET
After entering or exiting near-end PMA
loopback
Entire RX GTRXRESET
1. The recommended reset has the smallest impact on the other components of the GTP transceiver.
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Xilinx 7 Series Specifications

General IconGeneral
Process Technology28nm
TransceiversUp to 96
I/O PinsUp to 1, 200
Transceiver Data RateUp to 28.05 Gbps
Power ConsumptionVaries by device
Operating TemperatureCommercial, Industrial
Package OptionsBGA, CSP
FamilyArtix-7, Kintex-7, Virtex-7
DSP Slices16 - 3600

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