From ASICs to SOCs: A Practical Approach

Capabilities

The OCP captures all core characteristics without restricting system arbitration, address map, etc.

• Small set of mandatory signals, with a wide range of optional signals.

• Core-specific data and address widths.

• Structured method for inclusion of sideband signals: high-level flow control, interrupts, power control, device-configuration registers, test modes, etc.

• Synchronous unidirectional signaling allows simplified implementation, integration, and timing analysis.

• Transfers may be pipelined for reduced latency.

• Optional burst transfers for higher efficiency.

• Multiple concurrent transfer sequences may be managed with thread identifiers, for out-of-order completion.

• A connection identifier may be used to provide end-to-end identification ...