Transceiver Master RX Reset in Response to Completion of Configuration

Versal ACAP GTM Transceivers Architecture Manual (AM017)

Document ID
AM017
Release Date
2022-04-27
Revision
1.0 English

The RX reset sequence shown in the following figure is not automatically started to follow the global GSR.

These conditions must be met:

  1. RXRESETMODE must be set to use the sequential mode.
  2. All RXPMARESETMASK and RXPCSRESETMASK bits should be set to High.
  3. Set the appropriate MST_RESET_CFG attribute bits based on PLL selection, PROGDIV selection, and channel usage.
  4. MSTRXRESET is to be used.
  5. Ensure LCPLLRESET, ILORESET, RXPROGDIVRESET, and GTRXRESET are held Low during the master reset process.
  6. Ensure that GTPOWERGOOD is High before releasing MSTRXRESET.

If the reset mode is defaulted to single mode, then you must:

  1. Change reset mode to Sequential mode.
  2. All RXPMARESETMASK and RXPCSRESETMASK bits should be changed to High.
  3. Wait another 300–500 ns.
  4. Release MSTRXRESET.
Figure 1. Receiver Initialization after Configuration Using Master Reset Controller