73S8014RT TERIDIAN [Teridian Semiconductor Corporation], 73S8014RT Datasheet - Page 18

• Manufacturer Part Number: 73S8014RT
• Description: Smart Card Interface
• Manufacturer: TERIDIAN [Teridian Semiconductor Corporation]

The following steps show the activation sequence and the timing of the card control signals when the system
controller pulls CMDVCC% or CMDVCC# low while the RSTIN is high:
18
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CMDVCC% or CMDVCC# is set low at t
VCC will rise to the selected level and then the internal V
the end of t
at t
At the fall of RSTIN at t
RST is a copy of RSTIN after t
Figure 5: Activation Sequence – RSTIN High When CMDVCC% or CMDVCC# Goes Low
Figure 4: Activation Sequence – RSTIN Low When CMDVCC% or CMDVCC# Goes Low
1
, the OFF goes low to report a fault to the system controller, and V
t
t
t
t
t
t
1
2
3
1
2
3
= 0.510 ms (timing by 1.5MHz internal oscillator)
= 1.5μs, I/O goes to reception state
= >0.5μs, CLK starts, RST to become the copy of RSTIN
= 0.510 ms (timing by 1.5MHz internal oscillator, I/O goes to reception state)
= RSTIN goes low and CLK becomes active
= > 0.5μs, CLK active, RST to become the copy of RSTIN
1
. In normal operation, the voltage V
2
, CLK is applied to the card
2
.
0
.
CC
to the card becomes valid before t
CC
control circuit checks the presence of VCC at
CC
to the card is shut off.
1
. If VCC is not valid
Rev. 1.0