The GTY and GTYP transceiver allows you to reset the entire TX completely at any time by sending GTTXRESET and PCSRSVDIN[7] (TXDAPIRESET) an active-High pulse. These conditions must be met when using GTTXRESET:
- TXRESETMODE must be set to sequential mode.
- All TXPMARESETMASK, PCSRSVDIN[6:5] (TXDAPIRESETMASK), and TXPCSRESETMASK bits should be held High during the reset sequence before TXRESETDONE is detected High.
- The associated PLL must indicate locked.
- The guideline for this asynchronous GTTXRESET pulse width is one period of the reference clock.
Figure 1. Transmitter Reset after GTTXRESET Pulse in
Full Sequential Reset
