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Board real estate and wiring savings compared to a parallel bus are significant, and have earned SPI a solid role in embedded systems. That is true for most system-on-a-chip processors, both with higher-end 32-bit processors such as those using ARM , MIPS , or PowerPC and with lower-end microcontrollers such as the AVR , PIC , and MSP430 .
All recent LPC families are based on ARM cores, which NXP Semiconductors licenses from ARM Holdings, then adds their own peripherals before converting the design into a silicon die. NXP is the only vendor shipping an ARM Cortex-M core in a dual in-line package : LPC810 in DIP8 (0.3-inch width) and LPC1114 in DIP28 (0.6-inch width).
Devices implementing SPI are typically specified with line rates of 700~800 Mbit/s and in some cases up to 1 Gbit/s. The latest version is SPI 4 Phase 2 also known as SPI 4.2 delivers bandwidth of up to 16 Gbit/s for a 16 bit interface. The Interlaken protocol, a close variant of SPI-5 replaced the System Packet Interface in the marketplace.
An example SPI with a master and three slave select lines. Note that all four chips share the SCLK, MISO, and MOSI lines but each slave has its own slave select. Chip select (CS) or slave select (SS) is the name of a control line in digital electronics used to select one (or a set) of integrated circuits (commonly called "chips") out of several connected to the same computer bus, usually ...
In-System Programming process takes place during the final stage of production of the product and it can be performed in two different ways based on the production volumes. In the first method, a connector is manually connected to the programmer.
Embedded software is computer software, written to control machines or devices that are not typically thought of as computers, commonly known as embedded systems. It is typically specialized for the particular hardware that it runs on and has time and memory constraints. [1] This term is sometimes used interchangeably with firmware. [2]
Synchronous Serial Interface (SSI) is a widely used serial interface standard for industrial applications between a master (e.g. controller) and a slave (e.g. sensor). SSI is based on RS-422 [1] standards and has a high protocol efficiency in addition to its implementation over various hardware platforms, making it very popular among sensor manufacturers.
Indian Protection Service (Serviço de Proteção ao Índio), Brazil; Shotmed Paper Industries, an Egyptian paper manufacturers; Simulations Publications, Inc., a former US board game publisher