EZ80L92AZ050SG Integrated Circuits (ICs)

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EZ80L92AZ050SG is a member of Zilog’s Z-Ethernet family of microcontrollers (MCUs). This MCU includes an integrated Ethernet port and advanced peripherals, making it ideal for embedded applications that require integration of networking capabilities with rich features. This article will discuss the application field and working principle of the EZ80L92AZ050SG.

Application Field

The EZ80L92AZ050SG is a highly integrated MCU that combines Zilog’s Z-80 architecture with integrated 10/100 Ethernet MAC/PHY for 10 /100 Mbps operation. The processor core is based on a 8-bit Reduced Instruction Set Computer (RISC) design, with a configurable 16-level stack for fast context switching between tasks. It is ideally suited for a variety of embedded applications such as industrial control, automation, transportation and medical systems.

The Ethernet link includes a Media Access Controller (MAC) and Physical (PHY) layer component to provide an easy way to add networking capabilities to embedded systems. The EZ80L92AZ050SG also features two Event Outputs (EOTs) used to trigger external events based on an interrupt. This can be used to control external devices in an industrial application or to monitor a system’s “heartbeat” in an automation system.

The EZ80L92AZ050SG provides on-chip Flash memory for storing 8 kB of code and data for applications, plus on-chip SRAM for a total of 32 kB of fast access RAM. Additionally, the EZ80L92AZ050SG can access external memories such as SDRAM, DDR SDRAM, or NAND Flash up to 32 MB. The EZ80L92AZ050SG also supports multiple interface protocols, including 8-bit SPI, 8/16-bit parallel, UART, and I2C. This makes it an ideal choice for many types of designs, from simple motor control to distributed industrial automation.

Working Principle

The EZ80L92AZ050SG is based on a basic Reduced Instruction Set Computer (RISC) architecture. This type of architecture is based on the principle of reduced instruction set which means it takes fewer instructions to do the same tasks, thus providing faster execution and lower power consumption. The processor has a 16-bit-wide instruction register, giving it more power and flexibility than 8-bit architectures. It also has 32 kB of on-chip SRAM and 8 kB of on-chip Flash memory, with an option to extend this further via external memory.

The Ethernet link allows the EZ80L92AZ050SG to connect to external networks or systems. The MAC layer is responsible for handling data passages and data forwarding, while the PHY layer is responsible for streamlining the data transmission, ensuring it is sent and received in an orderly manner. The EZ80L92AZ050SG supports 8-bit SPI, 8/16-bit parallel, UART, and I2C interfaces, giving it the flexibility to support a wide variety of communication protocols.

The two Event Outputs (POUTs) can be used to control external devices such as motors or to monitor the heart beat of a system. The EZ80L92AZ050SG also has an analog-to-digital converter (ADC) for interrogating analog devices such as temperature or pressure sensors. Internally, the EZ80L92AZ050SG executes the instruction set, stores data, and performs other operations needed for the embedded application.

In summary, the EZ80L92AZ050SG is an ideal choice for a variety of embedded applications that need a combination of networking capabilities and advanced peripherals. With its reduced instruction set, integrated 10/100 Ethernet MAC/PHY, fast access RAM, and on-chip Flash memory, it provides the power and features needed to build powerful and reliable embedded systems.

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