Texas Instruments TMS320C645X - Manual (Page 17)

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Serial RapidIO 1x Device to 1x Device Interface Diagram
Serial RapidIO 4x Device to 4x Device Interface Diagram
1x Device
TD[0]
TD[0]
RD[0]
RD[0] TD[0]
TD[0]
1x Device
RD[0]
RD[0]
RD[0-3]
RD[0-3]
4x Device
TD[0-3]
RD[0-3]
RD[0-3]
TD[0-3]
4x Device
TD[0-3]
TD[0-3]
1.2 RapidIO Feature Support in SRIO
Overview
Figure 3. Serial RapidIO Device to Device Interface Diagrams
Features Supported in SRIO:
•
RapidIO Interconnect Specification V1.2 compliance, Errata 1.2
•
LP-Serial Specification V1.2 compliance
•
4X Serial RapidIO with auto-negotiation to 1X port, optional operation for four 1X ports
•
Integrated clock recovery with TI SERDES
•
Hardware error handling including Cyclic Redundancy Code (CRC)
•
Differential CML signaling supporting AC and DC coupling
•
Support for 1.25, 2.5, and 3.125 Gbps rates
•
Power-down option for unused ports
•
Read, write, write with response, streaming write, outgoing Atomic, and maintenance operations
•
Generates interrupts to the CPU (Doorbell packets and internal scheduling)
•
Support for 8b and 16b device ID
•
Support for receiving 34b addresses
•
Support for generating 34b, 50b, and 66b addresses
•
Support for the following data sizes: byte, half-word, word, double-word
•
Big endian data transfers
•
Direct IO transfers
•
Message passing transfers
•
Data payloads of up to 256B
•
Single messages consisting of up to 16 packets
•
Elastic storage FIFOs for clock domain handoff
•
Short run and long run compliance
•
Support for Error Management Extensions
•
Support for Congestion Control Extensions
•
Support for one multi-cast ID
SPRU976 – March 2006 Serial RapidIO (SRIO) 17
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