P3041 QorIQ Communications Processor Product Brief, Rev. 0
P3041 Features
Freescale Semiconductor14
• x8, x4, x2, and x1 link widths supported
• Both 32- and 64-bit addressing and 256-byte maximum payload size
• Full 64-bit decode with 36-bit wide windows
• Inbound INTx transactions
• Message Signaled Interrupt (MSI) transactions
3.10.2 Serial RapidIO Interfaces
3.10.2.1 Serial RapidIO Interface
The Serial RapidIO interface is based on the RapidIO Interconnect Specification, Revision 1.3 with
features from 2.1. RapidIO is a high-performance, point-to-point, low-pin-count, packet-switched
system-level interconnect that can be used in a variety of applications as an open standard. The rich feature
set includes high data bandwidth, low-latency capability, and support for high-performance I/O devices as
well as message-passing and software-managed programming models. Receive and transmit ports operate
independently, and with 2 x 4 Serial RapidIO controllers, the aggregate theoretical bandwidth is 32 Gbps.
Key features of the Serial RapidIO interface unit include the following:
• Support for RapidIO Interconnect Specification, Revision 1.3 (all transaction flows and priorities)
• 1x, 2x, and 4x LP-serial link interfaces, with transmission rates of 2.5, 3.125, or 5.0 Gbaud (data
rates of 2.0, 2.5, or 4.0 Gbps) per lane.
• Auto-detection of 1x, 2x, or 4x mode operation during port initialization
• 34-bit addressing and up to 256-byte data payload
• Receiver-controlled flow control
• RapidIO error injection
• Internal LP-serial and application interface-level loopback modes
3.10.2.2 RapidIO Message Manager (RMan)
The key features of the RapidIO message manager (RMan) include the following:
• Manages two inbox/outbox mailboxes (queues) for data and one doorbell message structure
• Can multi-cast a single-segment 256-byte message to up to 32 different destination DevIDs
• Has four outbound segmentation units supporting RapidIO Type 5–6 and Type 8–11
3.10.3 Serial ATA (SATA) 2.0 Controllers
The key features of each of the two SATA include the following:
• Designed to comply with Serial ATA 2.6 Specification
• Supports host SATA I per spec Rev 1.0a
— OOB
— Port multipliers