Lattice Semiconductor CertusPro-NX - Figure 5.12. Detailed Channel Block Diagram of MPCS-8 B;10 B Mode; Figure 5.13. Detailed Channel Block Diagram of MPCS-64 B;66 B Mode

CertusPro-NX SerDes/PCS Usage Guide
Preliminary Technical Note
FPGA-TN-02245-0.81 © 2020-2021 Lattice Semiconductor 45
All rights reserved. CONFIDENTIAL
PMA Control
Cal ibration
FSM
Equa lization
FSM
PRBS
Gen & Chk
PCI Express PCS Channel
Quad Common, Clock Reset Generation, and BIST Gen/Chk
64B/66B PCS Channel, PMA Only Channel
Figure 5.12. Detailed Channel Block Diagram of MPCS-8B/10B Mode
MPCS-64B/66B Mode
Figure 5.13 shows the detailed channel block diagram in PMCS-64B/66B mode. In this mode, only 64B/66B PCS channel
is expanded, 8B/10B PCS channel and PMA Only channel are hidden.
PMA Control
Cal ibration
FSM
Equa lization
FSM
PRBS
Gen & Chk
PCI Express PCS Channel
PMA Only Channel, 8B/10B PCS Channel
Figure 5.13. Detailed Channel Block Diagram of MPCS-64B/66B Mode
MPCS-PMA Only Mode
Figure 5.14 shows the detailed channel block diagram in PMCS-PMA Only mode. In this mode, only PMA Only channel
is expanded. 8B/10B PCS channel and 64B/66B PCS channel are hidden.