AN3404 datasheet(21/30 Pages) STMICROELECTRONICS

No de pièce	AN3404

Description	Low power considerations for STM8TL5xxx devices

PDF	30 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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21 / 30 page

AN3404

ProxSense and low power modes

Doc ID 018847 Rev 3

21/30

6.3.4

Inactive state

It is recommended to set the inactive state of the receivers and transmitters to VSS in order

to avoid driving noise on these lines This also allows consumption to be reduced through the

PXS_RX and PXS_TX pins compared to if they were configured in floating state.

6.3.5

Receiver disabling

Between acquisitions, if the ProxSense is not switched off by resetting the PXS_EN bit in the

PXS control register 1 (PXS_CR1) or by setting the LOW_POWER bit, there is a static

consumption which depends on the number of enabled receivers. To reduce this

consumption, it is worth disabling all the receivers by resetting the PXS receiver enable

This is particularly relevant for applications that need a fast response time and which cannot

use the LOW_POWER bit option due to the stabilization time.

AN3404 Fiches technique(PDF) 21 Page - STMicroelectronics