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1) QCC300x DSP RAM: 6K x 32-bitprogram RAM including 1K instruction cache for executing out of internal flash.16K x 24-bit +16K x 24-bit 2-bank data RAM; CSR8670 DSP RAM: 12K x 32-bit program RAM including 1Kinstruction cache for executing out of internal flash. 32K x 24-bit + 32K x 24-bit2-bank data RAM; 2) QCC300x: DSP ROM，not programmable;
CSR867x: DSP flash,programmable; 3) QCC300x: uses external serialflash ICs for storage: Device-specific data; Application; Libraries; Voice prompt files; data; CSR867x: internal flash 16Mb; 4) QCC300x 只有sink application project,目前还没有支持source project计划。
QCC300x总体是CSR8670的精简降成本方案,DSP RAM减少一半,没有了16Mb内部Flash存储; DSP固化在ROM中,不能客户开发. 经典蓝牙功耗基本差不多. QCC300xBLE的功耗降低,连接状态150uA左右,广播状态100uA左右,扫描状态255uA左右.
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