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TRF7970A: NFC Target Detection Level Register B[2:0] = {Rfdet_h2 ~ 0} = 0, then is it enabled ?

Hideaki Nambu
Mastermind 9125 points
Part Number: TRF7970A

Hello,

Please assume the Rfdet_h2 = Rfdet_h1= Rfdet = 0. Then, Is the IC enabled or disabled ?

DS p49: 'Not active'

DS p70: 'detection is off.'

  • 0
    TI__Guru*** 131510 points

    Hello Hideaki,

    The IC is not controlled by these bits, only by EN and EN2.

    The terms "not active" and "detection is off" refer only to the Target Detection feature and nothing else.

    On Page 49, the register table also lists "detection is switched off' - the table below it (6-16) just lists out in more detail what the thresholds are.