TCA5013 Datasheet, PDF (44/68 Pages) Texas Instruments – Feature Rich Smartcard Interface IC

TCA5013
SCPS253B – JANUARY 2014 – REVISED JANUARY 2016
REGISTER
ADDRESS
DESCRIPTION
FIELD NAME BIT
0x00
User Card Interface Status
0x00
1: Card interface is active (V_CC is ramped and stable)
0: Card interface is inactive
ACTIVE_UC
7
0x00
1: Indicates card ATR was received before the ATR valid window.
INT_UC bit is set in interrupt register.
Bit is cleared when the register is read
EARLY_UC
6
1: Indicates card ATR was not received within the ATR valid window.
0x00
INT_UC bit is set in interrupt register. Bit is cleared when the register is MUTE_UC
5
read.
1: Indicates over current condition on the card interface. INT_UC bit is
0x00
set in interrupt register.
PROT_UC
4
Bit clears when the register is read
1: Indicates the card interface is in internal CLK mode i.e frequency on
0x00
CLK pin is ~1.2 Mhz
CLKSW_UC
3
0: Indicates the card interface is not in internal clock mode.
1: indicates the card has been inserted or extracted. INT_UC bit is set in
0x00
interrupt register.
PRESL_UC
2
Bit is cleared when the register is read
0x00
1: indicates a card is present
0: indicates a card is not present
PRES_UC
1
0x00
1: indicates V_CC ramp fault on card interface. INT_UC bit is set in
interrupt register.
Bit is cleared when register is read
VCC_FAIL_UC 0
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R/W DEFAULT
R
1'b0
R
1'b0
R
1'b0
R
1'b0
R
1'b0
R
1'b0
R
1'b0
R
1’b0
REGISTER
ADDRESS
0x01
0x01
0x01
0x01
0x01
0x01
DESCRIPTION
User Card Interface Settings
00 : set V_CC to 1.8 V
01 : set V_CC to 1.8 V
10 : set V_CC to 3 V
11 : set V_CC to 5 V
1: IOMC1 is connected IOUC
0: IOMC1 is disconnected from IOUC
1: Warm reset sequence is started on user card interface
Bit is clears when warm reset sequence starts.
Bit is ignored if card interface is in synchronous type 1
operating mode, synchronous type 2 operating mode or
manual operating mode.
1 :Low to high transition on PRES pin indicates card insertion
0 : High to low transition on PRES pin indicates card insertion
1: Starts asynchronous activation sequence
0: Starts deactivation sequence
Bit clears when automatic deactivation occurs
Bit is ignored if card interface is in synchronous type 1
operating mode, synchronous type 2 operating mode or
manual operating mode.
FIELD NAME
SET_VCC_UC
IO_EN_UC
WARM_UC
CARD_DETECT_UC
START_ASYNC_UC
BIT
R/W DEFAULT
[7:6] R/W
2'b01
5
R/W
1'b1
3
R/W
1'b0
2
R/W
1'b0
0
R/W
1'b0
44
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