Each PCIe subsystem supports the
following main features:
- Compliance to PCIe® Base Specification,
Revision 4.0 (Version 0.7)
- 1-lane configuration with up to 5.0
Gbps/lane (Gen2). Can be used in 1x2 andS 1x1 modes
- Gen2 (5 Gbps 8/10-bit encoding), and
Gen1 (2.5 Gbps 8/10-bit encoding) with auto-negotiation
- 62.5/125 MHz operation on PIPE interface for Gen1/Gen2,
respectively
- Constant 32-bit PIPE width for
Gen1/2 modes
- Dual mode of operation: Root
Complex (RC) or End Point (EP)
- Maximum payload size of 128
bytes
- Maximum remote read request size
of 4K bytes
- Maximum Number of non-posted outstanding transactions: 8
- Single Physical Function in End
Point (EP) mode
- Four virtual channels (VC)
- Four traffic classes (TC)
- PCI Power Management states:
- L1 Power Management
sub-state support
- Device Power Management states D0, D1, D3Hot
- Resizable BAR capability
- Functional Level Reset (FLR) support
- Separate Reference Clock with
Independent Spread (SRIS) support
- Legacy, MSI and MSI-X Interrupt
Support
- 32 outbound address translation
regions
- Precision Time Measurement (PTM) for both RC and EP modes in
combination with internal Common Platform Time Sync (CPTS) module
- PCIe compliant PHY (PIPE 4.0) interface for connection to a
SERDES-based PHY