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2 rapidio feature support in srio, Srio, Diagrams – Texas Instruments TMS320TCI648x User Manual

Page 19

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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 Peripheral:

RapidIO Interconnect Specification V1.2 compliance, Errata 1.2

Physical Layer 1x/4x 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 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 8-bit and 16-bit device ID

Support for receiving 34-bit addresses

Support for generating 34-bit, 50-bit, and 66-bit addresses

Support for the following data sizes: byte, half-word, word, double-word

Big endian data transfers

Direct I/O transfers

Message passing transfers

Data payloads of up to 256 bytes

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

SPRUE13A – September 2006

Serial RapidIO (SRIO)

19

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