MCIMX31LCVMN4D Freescale, MCIMX31LCVMN4D Datasheet - Page 87

• Manufacturer Part Number: MCIMX31LCVMN4D
• Manufacturer: Freescale

Specifications of MCIMX31LCVMN4D

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

4.3.20.3 Power Down Sequence
Power down sequence for SIM interface is as follows:
Each of this steps is done in one CKIL period (usually 32 kHz). Power down can be started because of a
SIM Card removal detection or launched by the processor.
requirements for this sequence, with Fckil = CKIL frequency value.
Freescale Semiconductor
Num
1
2
3
4
1. SIMPD port detects the removal of the SIM Card
2. RST goes Low
3. CLK goes Low
4. TX goes Low
5. VEN goes Low
SIM reset to SIM clock stop
SIM reset to SIM TX data low
SIM reset to SIM Voltage Enable Low
SIM Presence Detect to SIM reset Low
DATA_TX
SIMPD
SVEN
RST
CLK
Description
Spd2rst
Table 55. Timing Requirements for Power Down Sequence
Figure 75. SmartCard Interface Power Down AC Timing
MCIMX31C/MCIMX31LC Technical Data, Rev. 4.3
Srst2clk
Srst2dat
Symbol
S
S
S
S
rst2ven
rst2dat
rst2clk
pd2rst
Srst2ven
Figure 75
0.9*1/FCKIL
1.8*1/FCKIL
2.7*1/FCKIL
0.9*1/FCKIL
Min
and
Table 55
show the usual timing
Electrical Characteristics
Max
0.8
1.2
1.8
25
Unit
µs
µs
µs
ns
87