TCA5013 Datasheet, PDF (18/68 Pages) Texas Instruments – Feature Rich Smartcard Interface IC

TCA5013
SCPS253B – JANUARY 2014 – REVISED JANUARY 2016
www.ti.com
8.4 Device Functional Modes
At any given time the TCA5013 can be in one of several different functional modes. Figure 3 diagram shows the
different functional modes and describes how the device transitions from one mode to another. The blue bubbles
represent actual functional modes and the white bubbles represent transitional states that are used to move from
one functional mode to another.
Power off mode
V_DD > V_DDSH
V_DDI > V_DDITH
SHDN = 1
Deactivate all
card slots
V_DD > V_DDSH
V_DDI > V_DDITH
SHDN = 0
V_DD < V_DDSH
or
V_DDI < V_DDITH
Shutdown mode
SHDN = 1
State change
on PRES pin
Assert INT
Power on
Reset
SHDN = 0
V_DD < V_DDSH
or
V_DDI < V_DDITH
Deactivate all
card slots
Standby mode
V_CC fail
Card
activation
command
SHDN = 0
V_DDI < V_DDITH
Deactivate all
card slots
V_CC Check
V_DD < V_DDTH
Or over
temperature
V_CC
active
Active mode
No other
card slot
active
Other cards
still active
Over current card
removal or
deactivation
command
Deactivate all
card slots
Figure 3. Device Operating Modes
18
Submit Documentation Feedback
Product Folder Links: TCA5013
Copyright © 2014–2016, Texas Instruments Incorporated