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miscDesc表示什么



qmDCfgTestProject 代码中:

#pragma DATA_ALIGN (linkingRAM0, 16)

UInt64                  linkingRAM0[NUM_MONOLITHIC_DESC + NUM_MISC_DESC];

/* Descriptor pool [Size of descriptor * Number of descriptors] */

#pragma DATA_ALIGN (monolithicDesc, 16)

UInt8                   monolithicDesc[SIZE_MONOLITHIC_DESC * NUM_MONOLITHIC_DESC];

#pragma DATA_ALIGN (miscDesc, 16)

UInt8                   miscDesc[SIZE_MISC_DESC * NUM_MISC_DESC];

其中的miscDesc表示什么?