Appendix E

CMSIS-Core Functions Quick Reference

The Cortex® Microcontroller Software Interface Standard contains a number of standardized functions:

• Core peripheral access functions

• Intrinsic functions

In this appendix the basic information about these standardized functions will be covered. Some of the functions in CMSIS use the standard data types defined in “stdint.h.” For example:

Table E.1

Standard Data Types Used in CMSIS

Type Description
uint32_t Unsigned 32-bit integer
uint16_t Unsigned 16-bit integer
uint8_t Unsigned 8-bit integer

E.1 Exception and interrupt numbers

A number of functions in CMSIS use interrupt numbers to access interrupt features. The interrupt number definition is different from the processor IPSR ...

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