(多选题)20: 要使DSP能够响应某个可屏蔽中断，下面的说法错误的是（）
A: 需要把状态寄存器ST1的INTM位置1，且中断屏蔽寄存器IMR相应位置0
B: 需要把状态寄存器ST1的INTM位置1，且中断屏蔽寄存器IMR相应位置1
C: 需要把状态寄存器ST1的INTM位置0，且中断屏蔽寄存器IMR相应位置0
D: 需要把状态寄存器ST1的INTM位置0，且中断屏蔽寄存器IMR相应位置1
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