PSC ( Programmable Servo / Sequence controller )

PSC(Programmable Servo/Sequence controller)

Programmable Servo/Sequence controller (PSC) is a coprocessor that is completely separated from the CPU core and a computing unit that has the original instruction architecture. Processing burdens of the CPU core can be significantly reduced by separating the arithmetic operations and sequence processing that is performed at regular and irregular basis.
As the result, the power consumption of the MCU can be reduced as well by lowering the operation frequency of the CPU core. Also, the CPU resources can be used for other operations. These processes will allow the performance to be improved and functions to be added.

PSC execution sequence (in case of the TMPM342FYXBG)

There are two types of how to start the PSC: one using the CPU core and the other one using a peripheral function. The way to start the PSC using a peripheral function differs according to products. For an example, if the PSC needs to be periodically started, the interval timer interrupt should be used.  The AD conversion termination interrupt can be also used. Once the PSC is activated, it runs program stored in the code RAM and then stores a calculation result or processing result in the data RAM. Then, it runs a STOP instruction. These processes generate a PSC termination interrupt in the CPU core and stop the operation. The stopping PSC does not consume power and stand by for the next starting factor.

Since the access to the peripheral function register is easy, there are various applications for the PSC.

  • Camera-shake correcting function control and auto focus control
  • DC Iris control of security cameras
  • Position control and speed control of motors
  • Stepping motor control
  • Peripheral function control (port control, serial communication control, etc.)
  • Flexible data transfer

Lineup

Microcontrollers products incorporating Servo/Sequence Controller interface are displayed.

Contacts

Technical inquiry

Contact us

Contact us

Frequently Asked Questions

FAQs

Queries about purchasing, sampling and IC reliability

Stock Check & Purchase

keyword:

Disclaimer for External Link
Through this website you are able to proceed to the website of our distributors ("Third Party Website") which is not under the control of Toshiba Corporation and its subsidiaries and affiliates (collectively "Toshiba"). The Third Party Website is made available to you as a convenience only and you agree to use the Third Party Website at your own risk. The link of the Third Party Website does not necessarily imply a recommendation or an endorsement by Toshiba of the Third Party Website. Please be aware that Toshiba is not responsible for any transaction done through the Third Party Website, and such transactions shall be subject to terms and conditions which may be provided in the Third Party Website.
A new window will open