******* Description ***********
ICACHE_ENABLE | The bit is used to activate the data cache. 0: disable, 1: enable |
ICACHE_WAY_MODE | The bit is used to configure cache way mode.0: 4-way, 1: 8-way |
ICACHE_SIZE_MODE | The bit is used to configure cache memory size.0: 16KB, 1: 32KB |
ICACHE_BLOCKSIZE_MODE | The bit is used to configure cache block size.0: 16 bytes, 1: 32 bytes |