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ML51/ML54/ML56
Sep. 01, 2020
Page
505
of 719
Rev 2.00
ML
51
/ML
54
/ML
5
6 S
E
RI
E
S
TECHNI
CA
L
RE
F
E
R
E
NC
E
M
A
NU
A
L
ML51/M
L54
/M
L56
Series
Tec
hnical Reference
Manual
Undefined
T1
T2
T3
ATR
Time
T1
T2
T3
Comment
83.5
133
165
165
491
537
569
42060
SC_PWR
SC_CLK
SC_RST
SC_DAT
SC_PWR to SC_CLK Start
SC_CLK Start to SC_RST Assert
SC_RST Start to ATR Appear
T1
T2
(Unit SC Clock)
Note : The values are measured by chip I / O pin and the real value will depend on system design
400 <= T3 <= 40000
Suggestion timing
Table 6.10-1 SC Activation and Cold Reset Sequence
Warm Reset
The warm reset sequence is showed in Figure 15.3-3
1.
Set SC_RST to low by software programming to ‘0’ before timing T4.
2.
Set SC_DAT to high by software programming to ‘1’ period of timing T4.
3.
Set SC_RST to high by software programming to ‘1’ after timing T5.
4. Smart Card host controller read the card ATR period of timing T6.
Undefined
T6
ATR
T4
T5
T4
Comment
Note: This value is measured by chip IO pin, the real value will depended on system design
Time
81
129
161
161
483
531
563
42106
T4
T5
T5
T6
Suggesting timing (Unit SC Clock)
400 <= T6 <= 40000
SC_DAT
SC_RST
SC_RST to SC_DAT Reception Mode
SC_DAT Reception Mode to SC_RST Assert
SC_RST start to ATR Appear
Table 6.10-2 SC Warm Reset Sequence
Deactivation
The deactivation sequence is showedin Figure 15.3-4
1.
Set SC_RST to low by software programming to ‘0’ period of timing T7.