What is APB bus protocol?
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. You can use it to access the programmable control registers of peripheral devices.
Where is AMBA used?
Today, AMBA is widely used in a range of ASIC and SoC parts. These parts include applications processors that are used in devices like IoT subsystems, smartphones, and networking SoCs.
What is the use of AXI protocol?
The AXI is a point to point interconnect that designed for high performance, high speed microcontroller systems. The AXI protocol is based on a point to point interconnect to avoid bus sharing and therefore allow higher bandwidth and lower latency. AXI is arguably the most popular of all AMBA interface interconnect.
What is the use of AHB protocol?
About the protocol AMBA AHB is a bus interface suitable for high-performance synthesizable designs. It defines the interface between components, such as masters, interconnects, and slaves. AMBA AHB implements the features required for high-performance, high clock frequency systems including: • Burst transfers.
How do you use AMBA?
You can use amba like a fruity hot sauce to jazz up any dish, sweet or savory. Whyte has deployed it as a base for a sorbet, as a barbecue sauce, as a topper for an olive oil cake, even as a dressing for a taco. “It’s spicy and mellow, with this deep, rich fruitiness and subtle complexity,” he says.
What do you need to know about the APB protocol?
1.1 About the APB protocol 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.
When to assert the pslverr signal in slave?
Whenever there is a problem in the transfer, Slave indicates the error response for the transfer by asserting the PSLVERR signal. PSLVERR is only considered valid during the last cycle f and APB transfer, when PSEL, PENABLE and PREADY are all HIGH.
How does an AHB decoder work with a slave?
The AHB decoder receives the address signal from the master and decodes it into slave select signals. The slave responds to the master via an HRESP signal and the data transfer between master and slave begins. In total, there are about 20 different AHB signals each with a unique purpose.
What is the APB in microcontroller Revision 2?
The APB is a simplified interface for low-frequency system components. Revision 2 simplified the bus further by having all signal transitions synchronized to the clock’s rising edge. The APB consists of a single bus master called the APB bridge, which acts as a slave on the AHB/ASB.