Rtc; Secure Element - TQ-Systems TQMLX2160A Preliminary User's Manual

4.7

RTC

An optional RTC type PCF85063A can be assembled on the TQMLX2160A.
RTC signal CLKOUT (32 kHz) is routed to the TQMLX2160A connector (X3-B97).
The RTC can be supplied via VBAT_RTC from the base board. VBAT_RTC = 0.9 V to 5.5 V.
CLKOUT is deactivated when the TQMLX2160A is not supplied with V
LX2160A
Figure 8: Block diagram RTC interface
C address 0x51 / 101 0001b
 The RTC has I
2
Other I C addresses see chapter 4.9.2.
2
4.8

Secure Element

An optional Secure Element type SE050C2HQ1 can be assembled on the TQMLX2160A.
The device is connected to the CPU as shown in the following Figure.
LX2160A
CPLD
Figure 9: Block diagram SEC interface
C address 0x48 / 100 1000b
 The SEC has I
2
Other I C addresses see chapter 4.9.2.
2
Preliminary User's Manual l TQMLX2160A UM 0002 l © 2020, TQ-Systems GmbH
RTC
I2C1
I²C
I2C1
Secure Element
Chip (SEC)
EN
.
IN
3.3 V
VDD
3.3 V
INT#
3.3 V
CLKOE
CLKOUT
LA
IO1
LB
IO1
IO2
CLK
RST#
100 kΩ
Module
Connector
VBAT_RTC
RTC_INT_OUT#
RTC_CLKOUT
Module
Connector
X3-A103
X3-A104
X3-A106
X3-A107
X3-A108
X3-A109
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