TCA5013 Datasheet, PDF (28/68 Pages) Texas Instruments – Feature Rich Smartcard Interface IC

TCA5013
SCPS253B – JANUARY 2014 – REVISED JANUARY 2016
SHDN
Debounce period
20 ms
SHDN
released
by µC
( pull-up)
Power on reset
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PRES
Card insertion /
extraction
INT
POR
interrupt
Interrupt
I ²C
status
register
read
Figure 10. Card detection in shutdown mode - High to Low PRES Topology
VDD /
VDDI
PRES
INT
Power on Reset
POR interrupt _{PRES bit = 1}
Card
insertion
PRES bit = 0
Debounce period
20 ms
PRESL
Interrupt
PRES bit = 1
Interrupt
2
IC
status
register
CARD
DETECT = 1
read
Figure 11. Device power up without card inserted in system - Low to High PRES Topology
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