TLE8262E datasheet(41/93 Pages) INFINEON

Part #	TLE8262E

Description	Universal System Basis Chip HERMES Rev. 1.0

PDF	93 Pages

Scroll/Zoom	100%

Manufacturer	INFINEON [Infineon Technologies AG]

Direct Link	http://www.infineon.com

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41 / 93 page

Data Sheet

Rev. 1.0, 2009-03-31

TLE8262E

WK Pin

Figure 17

Wake-up Timing

9.2.1

Transition from Normal to Sleep Mode.

The SBC can not be sent from Normal Mode to Sleep Mode with uncleared interrupt in the WK interrupt bits “WK

0 WK pin” and “WK 1 WK pin”. This is implemented to avoid that a wake information from the WK pin gets lost

during the transition from Normal to Sleep Mode. If a wake up appears during the µC sets the SBC to Sleep Mode,

the SBC will wake up directly after going to Sleep Mode. There is no difference if the bits “WK 0 WK pin” or “WK

1 WK pin” bit were set during the transition or were just not cleared before sending the SPI command for Sleep

Mode, the SBC will wake-up after entering the Sleep Mode. Therefore it always needs to be ensured that the bits

are cleared before sending the SBC to Sleep Mode.

VWK,th

VWK

tWK,f

No Wake Event

Wake Event

VWK,th

Wake Pin Diagram .vsd

tWK,f

TLE8262E Datasheet(PDF) 41 Page - Infineon Technologies AG