What is OPB bus?
What is OPB bus?
on-chip peripheral bus
Elements of this architecture include the processor local bus (PLB), the on-chip peripheral bus (OPB), a bus bridge, and a device control register (DCR) bus. High-performance peripherals connect to the high-bandwidth, low-latency PLB. Slower peripheral cores connect to the OPB, which reduces traffic on the PLB.
What is APB bus?
The Advanced Peripheral Bus (APB) is part of the Advanced Microcontroller Bus Architecture (AMBA) protocol family. It defines a low-cost interface that is optimized for minimal power consumption and reduced interface complexity.
Is AXI an open standard?
Getting started with AMBA and AMBA AXI AMBA is a freely available open standard for the connection and management of functional blocks in a system-on-chip (SoC).
What is APB and AXI?
The AXI (Advanced eXtensible Interface) to APB (Advanced Peripheral Bus) Bridge translates AXI4-Lite transactions into APB transactions. It functions as a slave on the AXI4-Lite interface and as a master on the APB interface. The AXI to APB Bridge main use model is to connect the APB slaves with AXI masters.
What is the difference between AXI and APB?
Difference Between AXI and AHB….
| AHB | AXI |
|---|---|
| Locked Transfers are supported | AXI3 supports Locked Transfers, AXI4 does not support Locked Transfers. |
| Exclusive transfers are Not Supported | Exclusive transfers are supported. |
Is AXI full duplex?
5] AXI support Full-duplex mode of communication because of multiple and independent channels while AHB does not support Full-duplex mode.
What is the on-chip peripheral bus (OPB)?
The on-chip peripheral bus (OPB) is designed for easy connection of on-chip peripheral devices. It provides a common design point for various on-chip peripherals. The OPB is a fully synchronous bus which functions independently at a separate level of bus hierarchy. It is not intended to connect directly to the processor core.
What are the different types of computer buses?
Types of Computer Bus A modern-day computer system can be viewed as comprising just two types of buses. These are the System Bus and the I/O Bus or Expansion Bus.
What are the bus protocol and other standards?
• Bus protocol standard (show the table) • Other standard – OCB 1 1.0, On-Chip Bus Attributes, Released August 1998 – SLD 1 1.0, System-Level Interface Behavioral Documentation Standard, Released March 2000 – OCB 2 Appendix, specification of the Transaction Language (will be included in Ver. 2.0)
What are the characteristics of hierarchical bus?
Characteristics of Hierarchical Bus • Processor bus: tailored to processor’s attributes and memory system • System bus and peripheral bus