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1. Overview
2. Getting Started
3. Development Kit Setup
4. Board Test System
5. Development Kit Hardware and Configuration
6. Custom Projects for the Development Kit
7. Document Revision History for the Agilex™ 7 FPGA M-Series HBM2e Development Kit User Guide
A. Development Kit Components
B. Additional Information
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4.2.5.4. The QSFPDD800 PAM4 Tab
Figure 16. The QSFPDD800 PAM4 Tab
Note: This tab has similar control functions as the QSFPDD NRZ tab.
PMA Setting
In addition to the PMA settings listed in QSFPDD NRZ — PMA Setting figure, additional settings are available for the F-Tile FHT PMA. The PMA is set to the default values in the PAM4 designs.
- Pre-emphasis tap:
- Post-tap 2: Specifies the amount of pre-emphasis on the second post-tap of the transmitter buffer.
- Post-tap 3: Specifies the amount of pre-emphasis on the third post-tap of the transmitter buffer.
- Post-tap 4: Specifies the amount of pre-emphasis on the fourth post-tap of the transmitter buffer.
- Pre-tap 3: Specifies the amount of pre-emphasis on the third pre-tap of the transmitter buffer.
Figure 17. QSFPDD800PAM4 Tab — PMA Setting
Related Information