Bit 27 of RTCIO_TOUCH_PADn_REG

apuder
Posts: 44
Joined: Mon Mar 26, 2018 7:27 pm

Bit 27 of RTCIO_TOUCH_PADn_REG

Postby apuder » Thu Jun 10, 2021 1:57 pm

Hi,

I have been tracing a call to rtc_gpio_pullup_dis(GPIO_NUM_2). This leads to a call to rtcio_ll_pullup_disable where bit 27 is cleared of RTCIO_TOUCH_PAD2_REG. I checked the TRM for this register (Register 4.54) but for bit 27 it says "reserved". What am I missing here?

TIA,
AP

WiFive
Posts: 3241
Joined: Tue Dec 01, 2015 7:35 am

Re: Bit 27 of RTCIO_TOUCH_PADn_REG

Postby WiFive » Fri Jun 11, 2021 2:15 am


apuder
Posts: 44
Joined: Mon Mar 26, 2018 7:27 pm

Re: Bit 27 of RTCIO_TOUCH_PADn_REG

Postby apuder » Fri Jun 11, 2021 7:02 am

So, this is an example of "the code is the documentation." I guess this is a question for the Espressif folks: how much up to date is the TRM and when will the documentation catch up with the current hardware/software?

AP

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