3: Block Diagram of Analog System – A Component of PSoC System The configurable core of a PSoC is formed by the analog system, the digital system and the interconnect. It also allows the blocks to drive or be driven away from available I/O pins. This allows various blocks to be connected to each other. These provide the chip with enhanced capability.Īll the elements are connected through configurable interconnect which can be analog or digital in nature. System Resources include multiply-accumulates (MAC), decimators, I2C, a Switch Mode Pump (SMP), and a full speed (12Mbps) USB. Each analog block can be configured and reconfigured to perform one of several analog functions such as filters, amplifiers, tone generators, ADCs, and DACs.Ĥ. The Analog System contains a number of analog blocks. Each digital block can be configured (and reconfigured) to perform one of several digital functions such as 32-bit timer, 16-bit PWM, UART and SPI.ģ. The Digital System contains a number of digital blocks. It consists of a 24MHz M8C CPU core, on-chip RAM and flash memories, multiple clock sources, a sleep-and-watchdog timer, and an interrupt controller.Ģ. The PSoC core is common to all PSoC families. The main component is a digital block which is analogous to a configurable logic block in a FPGA.ġ. It consists of a fixed processor core, number of configurable blocks and interconnects. The above figure depicts a high level architectural overview of PSoC. 1: Image of a Typical Programmable System on Chip (PSoC) Deviceįig. They also utilize fewer components to perform a task.įig. Peripherals allow interaction with the physical world.

These devices occupy minimum board space, consume less power, provide high efficiency and reduce system cost. These are controlled by an on-chip microcontroller, thus, providing both enhanced design revision capability and component count savings. PSoC devices integrate configurable analog and digital circuits. A System on Chip is a single chip performing functions of several chips put together. A PSoC combines the architecture of both making it one of a kind.

The traditional chips consist only of CPU cores whereas configurable blocks can be found in FPGA, CPLD and ASIC. This family consists of a CPU core and configurable analog and digital blocks which makes it different from traditional microcontrollers. In 2002, Cypress semiconductors started shipping a family of microcontrollers called Programmable system on chip.

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