MSP430 IAR C/C++ Compiler reference guide - Rice University

Descriptions of segmentsDATA20_ZDescriptionSegment memory typeMemory placementAccess typeHolds zero-initialized __data20 static and global variables. The contents of thissegment is cleared by the system startup code.This segment cannot be placed in memory by using the -P directive for packedplacement, because the contents must be continuous. Instead, when you define thissegment in the linker command file, the -Z directive must be used.DATA0x00001–0xFFFFERead/writeDIFUNCTDescriptionSegment memory typeMemory placementAccess typeHolds the dynamic initialization vector used by C++.CONSTThis segment must be placed in the first 64 Kbytes of memory.Read-onlyINTVECDescriptionSegment memory typePlacementAccess typeHolds the interrupt vector table generated by the use of the __interrupt extendedkeyword in combination with the #pragma vector directive.CODEThe start address depends on the device and the end address must be 0xFFFF.Read-only248MSP430 IAR C/C++ CompilerReference Guide