CertusPro-NX SerDes/PCS Usage Guide
Preliminary
Technical Note
104
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Table 11.6. General Parameters of Receiver Characteristics for SLVS-EC
Baud Rate
Parameters
Min
Typical
Max
Baud Grade 1 and 2
Receiver Input Differential Zero-Peak Voltage
65 mV
—
285 mV
Receiver Input Common Mode Voltage
25 mV
—
300 mV
Receiver Input Differential Resistance
80 Ω
—
110 Ω
Baud Grade 3
Receiver Input Differential Zero-Peak Voltage
40 mV
—
285 mV
Receiver Input Common Mode Voltage
25 mV
—
300 mV
Receiver Input Differential Resistance
80 Ω
—
110 Ω
DisplayPort Mode
DisplayPort (DP) is an industry standard to accommodate the growing broad adoption of digital display technology
within the Personal Computer (PC) and Consumer Electronic (CE) industries. It consolidates internal and external
connection methods to reduce device complexity, supports necessary features for key cross industry applications, and
provides performance scalability to enable the next generation of displays featuring higher color depths, refresh rates,
and display resolutions.
The DisplayPort mode of CertusPro-NX SerDes/PCS supports up to four different DisplayPort link rate: RBR, HBR, HBR2,
and HBR3. In DisplayPort mode, SerDes/PCS block is configured as specific link rate, based on 8B/10B PCS.
VESA DisplayPort Specification requires external AC-coupling. The recommended Capacitance are shown in
All DisplayPort Main-Link lanes need be AC-coupled, and the AC-coupling capacitors need be placed on the transmitter
side. The AC-coupling capacitors may also be placed on the receiver side for better signal performance.
Table 11.7. DisplayPort Recommend AC Capacitance
Link Rate
Minimum
Typical
Maximum
All
75nF
—
265 nF
CoaXPress Mode
CoaXPress is defined by Japan Industrial Imaging Association (JIIA) to connect cameras and frame grabbers. It combines
the simplicity of coaxial cable with state-of-art high speed data technology, allowing up to 12.5Gbps data rate per
cable, plus device control and power in the same cable.
CoaXPress is a point-to-point scalable interface that consists of one master connection and optional extension
connections. Each connection is associated with a coaxial cable. Each connection provides:
High speed serial downstream connection at up to 12.5Gbps;
Low speed serial upstream connection at up to 41.6Mbps (or 20.83Mpbs).
In other words, both high speed serial downstream connection and low speed serial upstream connection share the
same coaxial cable.
The CoaXPress mode of CertusPro-NX SerDes/PCS supports up to five different CoaXPress link rate: CXP-1, CXP-2,
CXP-3, CXP-5, and CXP-6. In CoaXPress mode, SerDes/PCS is configured as specific link rate, based on 8B/10B PCS.