The HCS12 V Core is a bit processing core using the 68HC12 instruction set architecture (ISA). This makes the Core instruction set. Product Features. ○ Long-distance wireless transmission (1,m in open space /baud rate 5,bps in the air). ○ Working frequency range (MHz. View or download datasheets, user guides, specifications and block diagrams for the Freescale 9S12/HCS12 microcontroller, the processor used by the PDQ.
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For a brief introduction to the microcontroller used, see the following:. Using this Doc Web.
Prevent excessive voltage levels at the pin; and. NI and the extensive network of NI Alliance Partners provide a wide range of professional services so that together, we can assist you hcw12 the design, development, and deployment of even the most complex systems.
Input pin logic levels and threshold voltages. Device Overview and Block Diagram.
Digital I/O – Hardware Interfacing
You may either source current to the LED, or sink current from it, as shown in datadheet following circuit. The Module Mapping Control Guide shows you how to use the control registers for the HCS12 Microcontroller and how to configure the device’s memory map. Protecting the 9S12 input and output pins.
Overview of the MC9S12A microcontroller. View Pricing and Purchasing Datasjeet. As the user manual for its Enhanced Capture Time module provides some specifications that were neglected in the manual for the MC9S12DP version, it is provided here. These following Freescale datasheets are provided to supplement the documentation on this website. Index to all documents, tutorials, and user guides.
Most datasheets listed on this page may be downloaded as a single 6. The trigger voltage can lie anywhere within the 1. This page is about: Nevertheless, any circuitry connected to the processor should take care to:. What should the resistor value be? If there is the possibility of the output pin being driven to a negative voltage level it is better to prevent excessive power dissipation in the processor package by externally clamping the voltage to ground V SS with a Schottky diode.
Freescale HCS12 9S12 Datasheets
Prototyping and feasibility analysis Startup, consulting, and development assistance System integration Migration and upgrade assistance For more information datashet NI professional services and the Alliance Partner Network, see ni.
Freescale HCS12 Add-on Board – National Instruments
We calculate it as, Eqn. Load circuitry that requires significant current to be sourced or sunk by the digital output should include external resistors to ensure that the absolute maximum rating of 25 mA per output pin is never exceeded. Datasheeet the skills you need to design and develop high-quality applications:.
Even so, as a service to those looking for descriptions of the protocol, the datasheets are provided here: Hs12 our standard NI technical support program, we can help you:. Excessive voltages are prevented by ensuring that voltages of less than a diode drop below V SS that is, Service Programs for Hardware At NI, we produce high-performance hardware and are committed to helping you maintain that performance for years to come.
But please be careful — whenever these outputs are connected to external devices you must stay within the voltage and current capabilities of the output pins.
That is, for currents of less than 10 mA the voltage change is linear with current; it can be modeled as a voltage source of either zero or five volts and an equivalent series resistance of 40 ohms 1. However, you should not rely on the internal diodes to prevent damage from datasbeet voltage.
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The maximum current you should ever source from the pin is 25 ma. The maximum current you should ever sink with the pin is 25 ma.