Ds8024 smart card interface – Rainbow Electronics DS8024 User Manual
Page 12
DS8024
Smart Card Interface
12
______________________________________________________________________________________
DEBOUNCE
DEBOUNCE
V
CC
PRES
OFF
DEACTIVATION CAUSED
BY CARDS WITHDRAWAL
DEACTIVATION CAUSED
BY SHORT CIRCUIT
CMDVCC
Figure 6. Behavior of PRES, OFF, CMDVCC, and V
CC
RST
CLK
V
CC
PRES
OFF
I/O
t
10
t
DE
t
12
t
13
t
14
t
15
Figure 7. Emergency Deactivation Sequence (Card Extraction)
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