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LPC1700 Microcontroller Slide 40
The System Tick (Systick) Timer is an integral part of the Cortex-M3. The timer is 24-bits wide and counts down to zero to generate an interrupt. It is intended is to provide a fixed 10mS time interval between interrupts for use by an operating system or other system management software. The Systick Timer may be clocked either from the CPU clock or from the external pin STCLK. The STCLK function shares pin P3.26 with other functions, and must be selected for use as the Systick Timer clock. The default value gives a 10mS interrupt rate if the CPU clock is set to 100 MHz.
PTM Published on: 2011-11-02