ARM Cortex-M4 - Page 57

The Cortex-M4 Instruction Set
ARM DUI 0553A Copyright © 2010 ARM. All rights reserved. 3-10
ID121610 Non-Confidential
MSP Read uint32_t __get_MSP (void)
Write void __set_MSP (uint32_t TopOfMainStack)
PSP Read uint32_t __get_PSP (void)
Write void __set_PSP (uint32_t TopOfProcStack)
Table 3-3 CMSIS functions to access the special registers (continued)
Special register Access CMSIS function