2. RapidIO Ports > Key Features
CPS-1848 User Manual
29
June 2, 2014
Formal Status
This document is confidential and is subject to an NDA.
Integrated Device Technology
Figure 6: S-RIO Port Diagram
shows a block diagram of an S-RIO Port Block. The key components of this port diagram are discussed throughout
the chapter.
2.2
Key Features
The S-RIO Block supports the following:
• 8b/10b codec
• Data scrambling/descrambling
• Lane/Link initialization management
• Control symbol generation
• Control symbol reception/decode
• IDLE sequence generation/control
• Receiver- and transmitter-controlled flow control
• S-RIO-based reset support
• Packet retransmission management
• Link maintenance and software-assisted error recovery
• Packet transmission cancellation
• Link error detection and recovery
• Packet forwarding
• IDT-specific packet trace and filtering
This functionality is compliant to the following S-RIO specifications:
• RapidIO Specification (Rev. 2.1), Part 1: Input/Output Logical Specification
• RapidIO Specification (Rev. 2.1), Part 2: Message Passing Logical Specification
Lanes
Ports
Lanes
Ports
Lanes
Ports
Lanes
Switch
Fabric
Registers
I2C
JTAG
Ports
Quadrant
Quadrant
Quadrant
Quadrant
Lane to Port Connection
Packet
Routing
Trace &
Filter
Input Buffer
CS RX
CS TX
RapidIO Flow Control
Erro
r Mgmt
Fi
na
l Bu
ff
er
S-RIO Port Block