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TMS570LS3137的ESM模块

Other Parts Discussed in Thread: TMS570LS3137

您好,关于TMS570LS3137的ESM模块有以下几个问题

1.关于TRM的12.4.15小节中的ESMEKR寄存器。当EKEY写5h操作

The ERROR pin set to high when the low-time counter (LTC) has completed; then the EKEY
bit will switch back to normal mode (EKEY = 0000).

那么EKEY变0000是主动变0000还是需要application向寄存器写0000

2.在12.2.2章节nERROR Pin Timing中,在example 6的描述中,如果出现超过2个failure,application该如何处理这些failure,nERROR Pin的期望现象是什么样的