Rainbow Electronics DS8024 - 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)