代码解析

#define SOC_XWR16XX_MSS_MAXNUMHEAPS (RADARMEMOSAL_HEAPTYPE_MAXNUMHEAPS)
#define SOC_XWR16XX_MSS_L1_SCRATCH_SIZE           0x2100U
#define SOC_XWR16XX_MSS_L2_BUFF_SIZE              0x2000U
#define SOC_XWR16XX_MSS_L3RAM_BUFF_SIZE           0x0000U

/*! L2 RAM buffer */
#pragma DATA_SECTION(gMmwL2, ".l2data");
#pragma DATA_ALIGN(gMmwL2, 8);
uint8_t gMmwL2[SOC_XWR16XX_MSS_L2_BUFF_SIZE];

/*! L2 RAM scratch */
#pragma DATA_SECTION(gMmwL1Scratch, ".l2data");
#pragma DATA_ALIGN(gMmwL1Scratch, 8);
uint8_t gMmwL1Scratch[SOC_XWR16XX_MSS_L1_SCRATCH_SIZE];

请问这一串代码的作用是什么