The Peripheral Component Interconnect express
(PCIe) subsystem with shared SerDes lines provides the following
main features:
- Compliant
to PCI-Express® Base Specification, Revision 4.0
(Version 0.7)
- 4-lane
configuration with up to 8.0 Gbps/lane (Gen3). Can
be
used in 1x4, 1x2, 1x1 modes.
- Gen3 (8
Gbps 128/130-bit encoding), Gen2 (5 Gbps 8/10-bit
encoding), and Gen1 (2.5 Gbps 8/10-bit encoding)
with auto-negotiation
- Dual
mode: Root Port (RP) or End Point (EP) operation
modes, selectable via bootstrap pins
- Dynamic
PIPE width change when switching between Gen1/2/3
modes
- Constant
32-bit PIPE width for Gen1/2/3 modes
- Maximum
payload size of 256 bytes
- Maximum
remote read request size of 4KB
- Single-root I/O Virtualization (SR-IOV) with
Physical Functions (PF) and Virtual Functions (VF)
in End Point mode
- Maximum
number of non-posted outstanding transactions:
32
- Resizable
Base Address Registers (BAR) capability
- Separate
Reference Clock with Independent Spread (SRIS)
- Legacy,
MSI and MSI-X Interrupt Support
- 32
outbound address translation regions
- Precision
time measurement (PTM)