1. For PCI exp using lynx_pciexp_tx_main Model, which amplitude will correspond to the model listed
Sets the peak value for output swing of transmitters and the amount of transmit equalization for lane A.
Transmit equalization selection bus for lane A.
If register field SRDSCR3[21:23] = 000, then the equalization definitions are:
000 No equalization
001 1.09x relative amplitude
010 1.2x relative amplitude
011 1.33x relative amplitude
100 1.5x relative amplitude
101 1.71x relative amplitude
110 2.0x relative amplitude
111 Reserved
If register field SRDSCR3[21:23] = 110, then the equalization definitions are:
000 No equalization
001 1.2x relative amplitude
010 1.5x relative amplitude
011 2.0x relative amplitude
100 Reserved
101 Reserved
110 Reserved
111 Reserved
Recommended setting per protocol:
• SATA: don’t care
• PCI Express: 100
• SGMII: 100
2. This is for PCI express, manual mentioned that AC coupling could be enable or disable, since AC caps places external to the chip at the driver, could disable the internal ones?
Used to set on-chip AC coupling in the receiver in lane A.
0 Disable on-chip AC coupling
1 Enable on-chip AC coupling
Recommended setting per protocol:
• SATA: 1
• PCI Express: 1
• SGMII: 1
