What is SSI absolute encoder?
SSI encoders offer an all-digital, serial, point-to-point communication interface providing unidirectional communication at speeds up to 1.5MHz. SSI stands for Synchronous Serial Interface and is commonly used with standalone absolute encoders given that it is a point-to-point, one slave per master configuration.
What is the difference between SSI and SPI?
As far as signal and timing waveforms, SSI is very similar to SPI. The main difference is that SPI uses a Chip Select signal to enable the sensor’s data output synchronize the data frame. With SSI there is only a clock and data. Transfers are synchronized with the 16kHz PWM frequency.
How does SSI protocol work?
The simplest SSI slave interface uses a retriggerable monostable multivibrator (monoflop) to freeze the current value of the sensor. The current frozen values of the slave are stored in Shift registers. These values are clocked out sequentially when initiated by the controller.
What is SSI output?
Serial Synchronous Interface (SSI) is a widely used serial interface between an absolute position sensor and a controller. SSI uses a clock pulse train from a controller to initiate a gated output from the sensor. Data is shifted out when the sensor receives a pulse train from the controller.
What are SSI sensors?
SSI’s family of pressure sensors use piezoresistive technology for its sensor signal processing to measure pressure. SSI Technologies, LLC full line of Pressure Sensors is sure to fit your automotive, industrial or commercial application needs. These compact, robust sensors measure a wide range of pressure.
In which communication clock signal is sent?
In synchronous communication, the sender and receiver use clocks that are synchronised (kept in phase), usually using a phase-locked loop or dedicated clock wire. This ensures that the receiver is able to determine the centre of each data bit when decoding the data that has been sent.
What is the other name of Rs 232?
The standard has been renamed several times during its history as the sponsoring organization changed its name, and has been variously known as EIA RS-232, EIA 232, and, most recently as TIA 232.
Is rs485 and SPI?
Encoder Communication Protocol Options Familiar serial interface standards are among the most popular and widely used, including RS-485 (aka TIA/EIA-485), SPI (Serial Peripheral Interface) and SSI (Synchronous Serial Interface).
What is ASI signal?
The Asynchronous Serial Interface (ASI) designates a data format for streaming video data, usually as an MPEG Transport Stream (MPEG-TS). Basically, the ASI signal is the end product of a video compression, (MPEG-2 or MPEG-4) for further transmission, for example via satellite or broadband cable.
What does SSI Technologies make?
SSI Technologies, Inc., a division of Amphenol, is a leading designer and manufacturer of sensors and sensor-based monitoring systems for the automotive, construction, agriculture, heavy truck, marine, sport vehicle, medical, general industrial, test & measurement and other industries.
Can asynchronous communication?
Asynchronous communication means communication which happens ‘out of sync’ or in other words; not in real-time. That means asynchronous communications takes place as a less time-sensitive interchange between communicating parties. For example, an email to a colleague would be classed as asynchronous communication.
What are some examples of synchronous communication?
Examples of synchronous communication
- In-person meeting.
- Phone call.
- Video conference (i.e., via Zoom, WebEx, Slack, etc)
- Asking the teammate across your desk a quick question.
- Coffee break conversations.